Affixes

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Across
  1. 1. A field with 4 sides
  2. 3. Don't trust
  3. 5. A animal with 8 legs
  4. 7. not outside
  5. 10. Not relevant
  6. 13. 100 years
  7. 14. Not possible
Down
  1. 2. Not touchable
  2. 4. Not missive
  3. 6. Three kids
  4. 8. Vehicle with two wheels
  5. 9. Not afraid
  6. 10. Not legal
  7. 11. 10 years
  8. 12. Building with 5 sides