1.

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Across
  1. 5. A horse retired due to age
  2. 6. an entire male horse under 2 years old
  3. 8. A horse between 14 & 15hh
  4. 9. horse A young horse that is broken in, but uneducated
  5. 11. An entire male horse over 2 years old
  6. 12. A colt or filly having reached its 1st birthday, but not its 2nd
Down
  1. 1. A desexed male horse
  2. 2. A horse not yet broken in, but ready to be broken in
  3. 3. A mare used for breeding
  4. 4. A horse no higher than 14hh
  5. 7. A female horse over 4 years old
  6. 10. A female horse under 4 years old