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 and the shaded squares will reveal a South American country.

1. Do the backstroke, say 2. Untidy state 3. Remain 4. Tug 5. Pottery oven 6. Standard 7. Bill of fare 8. Second hand

9.

Info 10. Opera song 11. Appends 12. Auction 13. Hearing organs 14. Slip, slide 15. Household dirt 16. Ruffian