Kind of horse possibly seen at York (5)

I believe the answer is:

shire

I'm a little stuck... Click here to teach me more about this clue!

'kind of horse' is the definition.

I can't explain the rest of the clue.

(Other definitions for shire that I've seen before include "Breed of draught horse" , "Rural county" , "Berks" , "The -----: Tolkien's hobbit-land" , "English county" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app