Stableman

I think it could be either:

Which length description are you looking for?:

6

ostler

'stableman' is the definition.(I know that stableman can be written as ostler)This is the entire clue.

(Other definitions for ostler that I've seen before include "Inn's stableman, of old" , "Inn servant" , "Horseman at the inn of old" , "Inn stableman (hist.)" , "Attendant for horses in olden times" .)

'stableman' is the definition.(synonyms)This is the entire clue.

(Other definitions for groom that I've seen before include "New husband" , "dress?" , "Tender of horses" , "One caring for horses" , "Bride's choice" .)