EIGHTH

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Across
  1. 1. where planes land and take off
  2. 7. next
  3. 8. unbelievable
  4. 9. thin piece of cardboard on which anything can be written
  5. 11. make
  6. 12. veriest
  7. 13. noun
  8. 14. support
  9. 16. pester
  10. 18. trip
Down
  1. 1. join
  2. 2. some kind of celebration
  3. 3. osseous
  4. 4. pine for
  5. 5. keypad
  6. 6. someone older
  7. 10. military community
  8. 11. clothes
  9. 15. mistake
  10. 17. network