Fox chaser? (4)
I believe the answer is:
trot
'fox chaser?' 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 "Jogging pace" , "Horse's pace - Communist" , "Horse's gait faster than a walk" , "Jog along" , "A slowish run, often by horse" .)