1: Standard degenerates for reiterators (7)
5: Poles in trouble with character from Greece (7)
9: Float me a loan covering breakfast, perhaps (7)
10: What this puzzle is (3)
11: Worthless even when recycled (3)
12: Support a deranged original (11)
13: In fear of wheat head (3)
15: Models from Evans Head extremely purposeful in Red Planet (9)
16: Inflexible yet adjusted (3)
17: How to get around doing business, essentially (3)
19: One fowl and yet two foul (9)
22: Three kernels of copper-yellow grain (3)
23: Check strong drink of 22-acrosss bold alter ego (5,6)
25: Taverns quoted cool clique (3)
26: Oxygen is pretty amusing. (3)
27: Typical! Pull over in back (7)
28: Before much time has elapsed a nobleman takes that over there (5,2)
29: Please start to sing at one San Francisco club (7)