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 musical instrument. 1. Fruit seeds 2. Smack 3. Fossil fuel 4. Pith helmet 5. Data 6. Gemstone 7. For fear that 8. Gull-like sea bird 9. Naming word 10. Pleasant 11. Chews and swallows 12. Wintry weather 13. Twist out of shape 14. Mountain lion 15. Mimics 16. Offscourings