1: What's left when you burn the tree (3)

3: A couple upset after end of big cheese (5)

5: Right, turn right to play with robot (3)

6: Something useful - like a matching collection? (5)

8: Prig had ma conceal midriff (9)

10: Navigate by terse directions (5)

11: Oxygen is pretty amusing. (3)

12: Robin Goodfellow's ice hockey requisites (5)

13: In fear of wheat head (3)

1: Biting piece of chocolate with dry exterior (5)

2: Grass present round container (7)

3: More than one grown-up kids' tender hearts god broke? (9)

4: Is Pat suitable? (3)

7: On second thoughts, rising fish glitter (7)

9: Scrooge in film is erratic (5)

10: Lifeblood of dope (3)