ire and ear

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Across
  1. 3. to ask
  2. 5. bright light, heat and smoke
  3. 6. to use your ear
  4. 8. run out
  5. 9. weapon with a pointed tip
  6. 10. nucleus of a cell
Down
  1. 1. come into sight
  2. 2. to sweat
  3. 4. not certain
  4. 7. a radio