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 type of hat. 1. Perambulator 2. Untidy state 3. Difficulty, disadvantage 4. Precious metal 5. Nobleman 6. Consumes food 7. Cummerbund 8. Chop wildly 9. Slay 10. Fibber 11. Genuine 12. Minus 13. Cold weather 14. Wild animal 15. Coal, say 16. Arm or leg