1: Hordes of unions' speakers (5)

4: See chess piece: king suffering hard loss (9)

9: Bright-sounding agenda touches on heavyweight legend (5,6)

10: Compete with life in France (3)

11: Cheaper oil, gas distributed in Island chains (13)

15: Do springs help American author? (3,6)

16: Uninitiated stoop to finish (3)

17: Infection leads from partly uncooked steak (3)

18: Conversation to completely stop about scrubs (9)

21: Free sex, lips in beer; it's beyond words (13)

22: at peoples uptown bar for starters? (3)

23: Exchange concealed proprietary knowledge (5,6)

25: We hear you cannot pay, so you can't smell. (9)

26: A drain could be at the bottom (5)

1: Drunkard turns up near beach, reversing new habit, to sleep fitfully (4,3,4)

2: They can't reproduce sounds like an operating system (7)

3: Find out scout (3)

4: Those emptying the boat of water start to belittle those who are seasick? (7)

5: Upended Sparta's rulers (7)

6: Have bananas now (3)

7: With diverse amendments? (7)

8: A hint for the snooker champ? (3)

12: Part of American's eerie pronouncement after a miracle (1,3,3)

13: Imposing put our nose out of joint (7)

14: Carelessly let teeth rot completely (2,3,6)

17: Parking likely to be easily adaptable (7)

18: Leave the cabin paneled with shakes (7)

19: People vomiting quietly into storm drains (7)

20: By garment's third wearing, regretted bright colour (4,3)

22: Fathers start to applaud, in afterthought (3)

23: Child is to depart, finally (3)

24: One may be a very long time (3)