quiz answers

I wish i could get it onto the crossword but I cant figure it out
Across:1. Shell Cottage5. Herbology6. Snape8. Wagtail10. Thestral11. Azkaban13. Phoenix14. Bludger15. Hogsmeade16. Griffin
Down:2. Expelliarmus3. Transfiguration4. Polyjuice Potion7. Patronus9. Whizz Hard12. Voldremort