Word spiral

Starting from 1, fill in the grid in a clockwise direction with four-letter words. The last letter of each word becomes the first letter of the next to reveal the sevenletter key word in the shaded boxes. Keyword clue: Bird of prey

1. Prayer ending

2. Hitler supporter

3. Lazy

4. Simple

5. Egg part

6. Sort, type

7. Diesel oil

8. Immense

9. Dull heavy noise

10. Entrance

11. Spool

12. Girl

13. Rider's spiked wheel

14. Housetop

15. Money reserve

16. Stupid person