Rider's foothold (7)
I believe the answer is:
stirrup
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">rider's foothold</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 stirrup that I've seen before include "Jockey's foot support" , "rider needs" , "Equine foot rest" , "Rider's foot loop" , "Equestrian foot support" .)