Unicorns?

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Across
  1. 3. famous racehorse who set a record for 4 miles
  2. 6. a flying unicorn
  3. 8. like a horse but has a horn
  4. 9. baby unicorns
  5. 10. Black the fastest racehorse
Down
  1. 1. Roy Rogers's horse
  2. 2. a horse with wings
  3. 4. his wings melted when he flew too close to the sun
  4. 5. Tonto's horse
  5. 7. whale with a tooth like a horn
  6. 9. The Lone Ranger's horse