Crossword Puzzle Busy, congested community

Clue: Busy, congested community

Busy IRS mo. (APR with 3 letters)
Community org. with merit badges (BSA with 3 letters)
Busy person's abbr. (ETC with 3 letters)
Not kept busy (IDLE with 4 letters)
Flatware company, or the New York community where it began (ONEIDA with 6 letters)
Quebec community (e.g. CANDIAC with 7 letters)
Provision at some busy intersections (NOUTURNSALLOWED with 15 letters)
Seaside community NE of Boston (SWAMPSCOTT with 10 letters)
Community org. with a gym (YMCA with 4 letters)
Busy commotions (ADOS with 4 letters)