1: Sit on the fish (5)

4: I shall be sick! (3)

6: Mineral springs start to moderate involuntary muscular contraction (5)

7: Uninitiated stoop to finish (3)

8: Difficult newspaper or novel (4,5)

10: Man, what an avant-garde US artist! (3)

12: ... but go oil crazy in snow house (5)

14: Worthless even when recycled (3)

15: De Bergerac hugged bird on return (5)

1: Infection leads from partly uncooked steak (3)

2: Grow, taking head of iceberg to show again (5)

3: Poor man's right to make powerless (9)

4: Frost to cover the cake (3)

5: Many sound prospects for prospectors (5)

8: Wooded hillock forming part of Arthur's territory (5)

9: Scrimmage as Confederate general introduces himself to Tarzan? (5)

11: However, you expect trouble at first (3)

13: Nothing we have to pay (3)