1: Consumed and digested tea (3)
2: Mink, for one, may fly when theres trouble (3)
3: Bird dog devouring bad lad (4,5)
4: Belated top-and-tailing to gladden one's heart (5)
5: Adore inconstant nymph (5)
8: A rugs fashionable and rather sweet (5)
9: Perfect conviction ends trial (5)
11: What's left when you burn the tree (3)
12: Infection leads from partly uncooked steak (3)