1: Deputy at clock centre sounds hesitant (5)
2: At first, actors I directed did poorly (5)
3: E.g., told story about cave-men (11)
4: Grant again drew one crookedly (7)
5: Spout off, immersed in Homer, to quick-tempered person (7)
6: Throw out faulty nib (3)
7: Sixth anniversary of an affair? (9)
8: Greek characters suggest dawn (3)
13: Actress Tori, lacking direction, is getting the characters out of order(11)
14: Stan's partner is central to Follies (5)
15: Gather together with former U.S. statesman in the audience (5)
16: Corner I established confines the most unruly (9)
20: They can't reproduce sounds like an operating system (7)
21: Mary gets back to business running building trade (7)
24: Pitcher, lunatic, not married (5)
25: Confuse Garfield, dashing back inside (5)
26: Partial approval for eggs (3)
27: Sister gets nothing, we hear (3)