1: They can't reproduce sounds like an operating system (7)
2: Crew member is one in operating room (3)
3: Stormy Toccata in A might be best music for one in this state. (9)
4: Neil Armstrong initially brought back extraterrestrial (5)
7: They come with corsets sometimes (7)
9: The idea -- a little meal filled you once (5)
11: Mink, for one, may fly when theres trouble (3)