Mystery gift puzzle

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Across
  1. 2. a subsequent effect of a quake or a traumatic event
  2. 4. a permit or ticket allowing free admission
  3. 7. the greatest process of collecting cattle in a pen
  4. 8. aurum; atomic number 79
  5. 10. rapidity of movement, at the pinnacle
  6. 11. acute anxiety being pitched violently downward
  7. 12. quivering or vibratory motions
Down
  1. 1. a period of the year lasting only a few months
  2. 3. a spiraled device for removing stoppers from bottles
  3. 5. a skilled aircraft flier who performs risky maneuvers
  4. 6. recurring succession of turning
  5. 9. a state of intense fear of trees