pel/puls(e)

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Across
  1. 3. A revolving part with blades (airplane)
  2. 5. Being forced
  3. 6. Force back or drive back
  4. 7. To drive out by force; to release from school
Down
  1. 1. Given to acting without thought
  2. 2. Drive forward; force ahead
  3. 4. Force someone to do something