1: Monsieur is immersed in unspecified French river (5)
4: Scores may appear amongst the trees (9)
8: Edible root on grapevine equals 200 milligrams (5)
9: Copy of top ten missing (3)
10: Guinevere maintains, 'When hell freezes over!' (5)
12: Skipped the French army physical training (5)
13: Meat and drink kept as refreshment? (4,5)
14: Big stink-up. Location is disgusting (7)
15: Place to clean up bit of trash in club meeting area (7)
17: Get used to being in Treasury Department with a secure job (7)
19: Not going back, confident, with shaved head (7)
21: Run a piece peculiarly devoted to the pursuit of sensual pleasures (9)
24: Caress one grand puzzlemaster (5)
25: I had been at the front, and retired (5)
26: Small piece of fish (3)
27: Studio sign initially obscured by swirling rain (2,3)
28: Classic Australian theatre patrons shocked in Dee Why (4,5)
29: Round of fire involving Vietnam's leader in Laos disturbance (5)