3 spelling sounds of /air/

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Across
  1. 3. climb these to go to the next floor
  2. 5. something you can sit in
  3. 6. another name for a rip in your clothes
  4. 7. a 4 sided shape
  5. 8. 2 of these on the side of your head
  6. 11. to fly you need to pay this
Down
  1. 1. these live in the woods
  2. 2. 2 things that are the same can be a?
  3. 3. to split something with a friend
  4. 4. you might be this in a spooky house
  5. 9. some pokemon cards can be this
  6. 10. have one of these to look a bit smarter