Pony's gait
I believe the answer is:
trot
'pony's gait' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for trot that I've seen before include "Run (like a horse)" , "Move quite fast" , "Go or walk briskly" , "Clip (horse)" , "Militant socialist (informal)" .)