1: Pen extracts articles from satay (3)
3: Small room leader of orchestra needed for instrument (5)
7: Discover treasure hiding in plain sight (5)
8: Kind of a nut, I hit a cop's convertible (9)
11: Neil Armstrong initially brought back extraterrestrial (5)
12: Clean oneself, but in reverse (3)
13: Gripped by instrument, a longish claw (5)
14: Bumped into yours truly at junction (3).