It's a kind of magic

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Across
  1. 2. a very small girl with wings and a wand
  2. 5. a woman with magic powers
  3. 6. a large, black pot used by witches
  4. 7. Harry Potter had one to make him invisible
Down
  1. 1. magical mode of transport
  2. 3. a man who has magic powers
  3. 4. words with a magic power
  4. 5. a long, thin stick