1: Building for owl and treble changes? (4,5)
2: Without it, set call for recompense (3)
3: Think at length about lost planet, comet (11)
4: I'm a stud playing in arena (7)
6: 23% of Scandinavians backing leaders (3)
7: Begins seeing another divorcee? Deplorable. (3)
8: Reportedly hoist Jeter of the NY Yankees (5)
10: Principle unaffected by revolution (5)
13: Play faster in last 3/4 of piece with bass held backward (5,2)
14: Mend a split state (11)
15: Too old for insurance protection without a cap (7)
18: Tess spied wrinkled skirts (9)
20: Annoying ad for toaster design? (3-2)
21: Journey to get crude oil in capital (7)
23: Notes spent in Germany (5)
26: No one told sister (3)
27: Bounder beheaded by slippery swimmer (3)
29: Doctrine for some Kiwis makes sense (3)