1: Illness I catch performing exercises? (13)
8: Fools the Proletariat after banning Marx's _Capital_ (5)
10: Confines for periods of time after onset of chickenpox (5)
11: Stir outspoken 3-down resident, usually (5)
12: Void three stones (5)
14: Right, turn right to play with robot (3)
15: Coolest sort of cats (7)
17: Fashionable journalist coming back after battle (1,2,4)
19: Certainly, Mr. Gore welcoming Republican is bizarre (7)
20: One of the fishes fights (7)
21: Solo, the pilot rises? No way (3)
22: The lowest point in a dire section (5)
23: Incandescent silver base (5)
25: Subscribe once more to Nazarene weekly in part (5)
26: Telekinesis pinches Albanian coin (3)
27: Rambling tales are out of date (5)
28: Drive away roofing material before farmhouse becomes a target area (8,5)