Easy gallop (6)
I believe the answer is:
canter
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">easy gallop</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for canter that I've seen before include "Move at an easy gallop" , "Lope" , "Pace of a horse between trot and gallop" , "Horse gait quicker than 9 across" , "(Horse's) pace between a trot and a gallop" .)