Signalman Puzzle

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Across
  1. 4. examine carefully
  2. 7. inform, notify
  3. 8. to weigh heavily on the mind, spirit or senses
  4. 10. irresistible, irrational impulse
  5. 12. disaster
  6. 13. that cannot be explained or understood
  7. 16. come from
  8. 18. untrustworthy, with a false sense of safety
  9. 21. turn something over in the mind
  10. 22. watchful and alert
  11. 23. force, exertion
  12. 24. answer
Down
  1. 1. mounting or falling precipitously
  2. 2. apart or separate
  3. 3. useless, having no value
  4. 5. noticeable, obvious
  5. 6. twice intensified
  6. 9. exceptional, extraordinary, remarkable
  7. 11. lack of appropriateness or fitness
  8. 14. the act of taking pains, great care, diligence
  9. 15. avoid, keep from happening
  10. 17. great force and strong feeling
  11. 19. sluggish, morose or taciturn
  12. 20. make afraid or discouraged