1: Man admitting setback for islanders (7)
3: How imprisoned labourers showed friendship? (4,5)
4: Ever-practical, Mr. Vader keeps own little piggy (4-2-5)
6: Expose the French heavy weight (3,2)
7: Doctor's swell operating (7)
10: Clarifier is followed by mixed signals (9)
12: Reading or writhing in river (3,6)
13: Hang back, keeping right next to person buying a jumper (11)
15: Cry at nothing and hope to be only slightly cowardly? (9)
16: Surrounded, small insect crawled into cover (7)
18: Spot stick-in-the-mud Republican with fan (7)
20: Mechanical worker pushing start button in the depths of the plant (5)
23: Sheep to start wallowing in ease (3)
25: And give a little toot! (3)