The Colonnade's Crossword Puzzle

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Across
  1. 3. a failure or disaster
  2. 6. refers to subtle differences
  3. 7. extremely tough or thorough
  4. 9. another word for fall
Down
  1. 1. to do especially well in something
  2. 2. extravagant, luxurious
  3. 4. this flightless bird is closely related to the ostrich
  4. 5. explode, cause an explosion
  5. 8. slow, tranquil