WORD SPIRAL

Starting from 1, fill in the grid clockwise with four-letter words. The last letter of each word becomes the first letter of the next to reveal a gemstone. 1. Tub of water 2. Bonce

3. Action 4. Podium 5. Identical, unchanged 6. Heinous

7. Dense metal 8. Stupid 9. Plough 10. Lacking fat 11. Require

12. Sullen

13. Rapid surprise attack 14. Money, slang 15. Wolf-like cry 16. Rich soil