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 an occupation. 1. The Red Planet 2. Cleaning agent 3. Cat noise 4. Corrode 5. Chore

6. Sort, type

7. Flat circular plate 8. Prison room 9. Overdue 10. Verge 11. Fishes 12. Takes a seat 13. Demonstrate 14. Small forest 15. Grime 16. Performing trip