2: Anger that is constraining response (3)
3: You audibly ram partner (3)
4: Full house often enough to secure this young pet (5)
7: Judges playing conkers? (7)
8: Freedom of action in desert (7)
9: 15-acrosss toilet pot? Rubbish! (5,6)
11: In text of bill, I cited 'It's not legal' (7)
12: Aliens work infrared thrust (7)
14: The control is over that way (7)
15: Expert made to order in the world of scholarship (7)
17: Subject to constant cold (5)
20: Crew member is one in operating room (3)
21: Freshen the atmosphere (3)