Unsaddle (6)
I believe the answer is:
unseat
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">unsaddle</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for unseat that I've seen before include "Remove from horse (or house?)" , "Cause to fall from the saddle" , "Dislodge from saddle" , "Throw (as a 15?)" , "Remove from power" .)