Complete me

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Across
  1. 1. month before your birthday
  2. 3. can also be a number
  3. 4. you and I
  4. 7. opposite of out
  5. 8. a shape
  6. 10. you need your eyes for this
  7. 11. opposite of everything
  8. 13. a word already in the crossword
  9. 14. Letter of the alphabet
Down
  1. 2. think Yorkshire
  2. 3. they steal whats not theirs
  3. 5. year 2000
  4. 6. celebration
  5. 9. Welsh slang for friend
  6. 12. If you're not coming you're ...