Puzzle for Piper

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Across
  1. 3. Trail activity
  2. 5. hold up over water
  3. 6. tiring sport
  4. 8. Diana, for one
  5. 10. Jackson or Jordan
  6. 12. Eisenhower or Schrute
  7. 15. Lobster, e.g.
Down
  1. 1. Wolf genus
  2. 2. Design professional
  3. 4. Physics property
  4. 7. Cardio activity
  5. 9. Semi-frozen
  6. 11. Nuns
  7. 13. Wedding participant
  8. 14. Glacier