A&A's puzzle for class

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Across
  1. 3. synonym of stony
  2. 6. someone who wants to know a lot of things (adj)
  3. 8. singers use it, it's an organ (N)
  4. 9. sb who is concious of sth (adj)
  5. 11. synonym of clearness
  6. 12. make up on the spot (V)
  7. 13. the outcome of a situation
Down
  1. 1. the power when a body is moving
  2. 2. to handle multiple tasks at once (V)
  3. 4. synonym of real (adj)
  4. 5. synonym of disagreement (N)
  5. 7. synonym of recognize (V)
  6. 10. antonym of "hot answer" (N)