1: Marine left anchor partially to 25-down man (7)
5: Its undergoing change regarding the performer (7)
9: Coach almost made fake conflicting noises (9)
10: Scotsman to notice fundamental singular metaphysical entity (5)
11: Turn in diet at night (9)
12: Put a new value on what secret agent is hiding (5)
13: Burdened young man with couple of encumbrances (5)
14: By garment's third wearing, regretted bright colour (4,3)
16: Race around example majestically (7)
18: Creep closer to girl, fight cold back (5)
20: A complex surprise (5)
22: Moist rice suprisingly a source of arousal. (9)
23: I had been at the front, and retired (5)
24: Dreadful bender did result in being laid up. (9)
25: Person of wealth and distinction extremely beautiful to Her Majesty, a horse doper (7)
26: Go back to skyscraper's easternmost exit (7)