DC #1 ( in-) (un-) Opposites

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Across
  1. 4. fasten
  2. 7. human
  3. 8. known
  4. 9. wear clothes
  5. 10. conscious of/ knowing
Down
  1. 1. clean
  2. 2. sane
  3. 3. regularly
  4. 5. pricy
  5. 6. galas