Crossword Puzzle Quarters of quartets

Clue: Quarters of quartets

Quarters of some quartets (BASSES with 6 letters)
Quarters of many quartets (BASSES with 6 letters)
It has an office of HIV/AIDS (AMA with 3 letters)
Pantry or office item? (STAPLE with 6 letters)
Official (e.g. ONRECORD with 8 letters)
Madison Avenue offerings (ADS with 3 letters)
Shape of the president's office (OVAL with 4 letters)
What the security officer was doin' in womenswear? (GUARDINHOSE with 11 letters)
Officiously intermeddle (SNOOP with 5 letters)