Across

2. Pump it into cars

5. Wild pig

6. Targets

7. Upper limb

8. Bang your toe

10. Laid by birds

13. Become liquid by heat

16. Slang for potato

18. Umpire

19. It forms over a cut

20. Wartime friend

21. Consume food

Down

1. At the end of the leg

2. Snatch

3. Not different

4. Self-satisfied

8. Total

9. Website address

11. Space between two things

12. Unhappy

14. Every one

15. Cylinder

16. Small argument

17. Unattractive