Let's celebrate

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Across
  1. 1. specific to a person or thing or category
  2. 5. a device with an explosive that burns
  3. 7. a parent of your father or mother
  4. 8. of extreme importance
  5. 9. the subject matter at issue
Down
  1. 1. talk in a loud voice
  2. 2. a large wild member of the cat family
  3. 3. as of holidays or rites
  4. 4. celebrated on the 25th of December
  5. 6. the sound of knocking a door