1. sign 2. signal 3. fast 4. fasten 5. debt 6. debit 7. soft 8. soften 9. bomb 10. bombard 11. muscle 12. muscular 13. column 14. columnist

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Across
  1. 1. quick
  2. 3. not bones but ?
  3. 7. explosion
  4. 8. a writer of the paper
  5. 10. attack
  6. 11. pillowy
  7. 12. something that shows you the way
Down
  1. 1. ... your seatbelt
  2. 2. toned and strong
  3. 4. not a row
  4. 5. bank or ... card
  5. 6. at a loss of money
  6. 9. make something soft
  7. 11. an alert