Molly's Puzzle

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Across
  1. 4. heir's concern
  2. 6. wooly palindrome
  3. 7. hurricane center
  4. 10. seconds
Down
  1. 1. magic word
  2. 2. half of a rum cocktail?
  3. 3. heart recipient
  4. 5. spell-off
  5. 8. mirror image?
  6. 9. not-so-great tennis score