#2

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Across
  1. 1. To unintentionally not do, neglect.
  2. 2. The tip of the external ear.
  3. 5. An upwards struggle
  4. 7. At frequent intervals.
  5. 10. The natural world or ecosystem.
  6. 13. An abject person.
  7. 14. A person who is very old.
  8. 16. Someone who is morally reprehensible.
  9. 17. To put oneself in a place where one will be harder to find or out of sight
  10. 18. To drift gently through the air.
  11. 20. A narrow opening.
Down
  1. 1. Lineage, especially an honorable one
  2. 3. A type of basic fishing rod.
  3. 4. Physical examination.
  4. 6. To supply or contribute.
  5. 8. Plants used in making a quickset hedge
  6. 9. duties or taxes imposed on imported or exported goods.
  7. 11. An individual item: the least quantitative unit in a grouping.
  8. 12. Something supplied continuously.
  9. 15. A messenger sent on a special errand; a courier.
  10. 17. (manner) Firmly, vigorously, with strength or exertion.
  11. 19. To injure as if by pulling apart.