1: Whip stuff with energy (5)
2: Remove top substituting pints for cups (5)
3: Welsh resort - and no dull resort (9)
4: God! Get real! There's no point getting upset (3)
5: Famous gardens said to move one to speak. (3)
9: Run around near a stadium (5)
10: Proficient in arithmetic, starting with short division (5)
11: Mink, for one, may fly when theres trouble (3)
12: In the manner of a girl (3)