Rockville civic activist Anne Robbins has announced her candidacy for Montgomery County Council, saying she is challenging incumbent William E. Hanna Jr. because of her "stark differences" with him on the issues.

Robbins, 48, who is making her first run for political office, will oppose Hanna, a two-term council member, in the Sept. 11 Democratic primary. Robbins acknowledged that she faces an uphill struggle against Hanna, who is well known in Rockville, where he once was mayor, and who likely will be able to raise more money.

But Robbins said there is a lot of citizen dissatisfaction with the current County Council -- both with its policies on growth and with its brand of politics, which resulted in the controversial formation of an incumbents' ticket.

"I continue to hear a clear messsage that the Montgomery County Council has become dominated by big-money representation and that the concerns and aspirations of our citizens are not being adequately addressed," said Robbins, as she launched her campaign for the 3rd District seat on the council.

She pointed, for instance, to the recent series of conventions by Democratic Party members who were angered that County Executive Sidney Kramer and the council members seeking reelection met privately to put together a ticket.

Hanna was pointedly rebuffed by the Democrats for the '90s. Although he was the only Democrat then in the 3rd District race, the convention refused to back him, opting for no endorsement.

"It's awfully hard to lose when you don't even have any opposition," Robbins said. Hanna has said the convention was a setup, loaded with people who held a grudge against him because of his views denouncing homosexuality and his criticism of teacher pay raises.

Nonetheless, Robbins said it was the experience of that night that persuaded her to get into the race. She said she differs with Hanna most dramatically on growth and the environment.

She criticized Hanna for being "very much pro-development."

Robbins said she will be able to get her message out. She said she is well known in the district -- partly as a result of door-to-door campaigning for her husband. She is married to Dave Robbins, a Rockville City Council member who ran unsuccessfully for county executive in 1986. Berger Files for House

Silver Spring attorney Robert Berger, a Democrat, is making a second run for the House of Delegates, saying the incumbents have failed to show leadership on such issues as transportation, abortion and day care.

"They've had four years to show us that they could solve problems in a forthright and creative way, and they have not done it," Berger said.

Berger, who ran unsuccessfully in the 1986 Democratic primary, is seeking one of the seats now held by Dana Lee Dembrow, Peter Franchot and Sheila Ellis Hixson. The three Demoratic incumbents are seeking reelection, and former Democratic delegate Diane Kirchenbauer is also running in the Sept. 11 primary.

Berger, 37, acknowledged that he is an underdog but said he "can't resist a good challenge." A resident of Montgomery since 1965, Berger vowed he would provide voters with "solutions, not politics."

Attorney Challenging Levitan

Robert J. Miller, a labor attorney, announced his Republican candidacy against Democratic state Sen. Laurence Levitan, saying Levitan may head up an influential committee but he has provided ineffective representation for Montgomery County.

"The residents of Montgomery County are being victimized by the Maryland governor and legislature, and my opponent goes along to keep his prized chairmanship," Miller said.

Miller said Montgomery County receives 40 cents for every dollar paid in state taxes -- a situation termed "tax rape."

"Stadiums, trolley lines, community colleges, inner harbors, excessive welfare all cost money, yours and mine," he said. Miller, 54, promised that if he wins the seat in District 15, he will push for legislation that no county receive less than 80 percent of state revenue for each dollar of state taxes paid by that county.

Miller, who worked for the U.S. Labor Department until 1988, is now associated with a Washington law firm and specializies in labor law. He has been active in the Republican Party since the 1970s.

Smith Withdraws Candidacy

Mary Smith, the widow of former Montgomery County Circuit Court clerk Howard Smith, has dropped out of the race against her husband's successor, Bettie A. Skelton, citing her opponent's formidable campaign organization and widespread support.

"I realized my opponent had . . . a very early start on me," said Smith, who announced her candidacy May 21 as part of a four-person ticket that included State's Attorney L. Andrew Sonner, Sheriff Raymond M. Kight and Register of Wills Patricia Dauenhauer.

Smith's withdrawal comes less than two weeks before the July 2 filing deadline for candidates in the 1990 elections. So far, Skelton is the only announced candidate for Circuit Court clerk.

Smith said she decided to withdraw after a "poor showing" in a vote earlier this month by the Democrats for the '90s group. Smith said she received 113 votes against 265 for Skelton, who was appointed last September by a majority of the 13 Circuit Court judges after Howard Smith's death last July.

"It {the vote} was very disappointing," Smith said. -- Veronica T. Jennings