1: Without it, set call for recompense (3)
3: Neil Armstrong, first to return from another world? (5)
5: Take Sominex, act half-blurry (7)
7: Tool placed under sack as a safety precaution (4,5)
9: Atom bombs to begin spewing ketchup ingredients (7)
10: Notes spent in Germany (5)
11: One final, huge Greek goddess (3)