Dad's Christmas Crossword

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Across
  1. 3. Gifts
  2. 5. A Wiseman's offering
  3. 6. Jolly gift-giver
  4. 7. North-Pole dwellers
Down
  1. 1. Sweet treats left out on Christmas Eve
  2. 2. One of Santa's reindeer; famously known for her speed
  3. 4. Unique winter crystal