ITW

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Across
  1. 4. Extreme self-discipline
  2. 9. Bitter resentment
  3. 12. Emotionally distant
  4. 13. Free from burdens
  5. 15. Moving without a fixed home
  6. 16. Rapid unpredictability
  7. 17. Pure and untouched
  8. 18. To loudly criticize
Down
  1. 1. Set free
  2. 2. Traveling from place to place
  3. 3. Unpredictable changes
  4. 5. Too slight to notice
  5. 6. Long journeys or wanderings
  6. 7. Natural connection
  7. 8. Mysterious
  8. 10. Path or course
  9. 11. Coming together
  10. 14. Rapid mood changes