Refrain from voting (7)
I believe the answer is:
abstain
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">refrain from voting</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for abstain that I've seen before include "Deny oneself" , "Refrain, forbear" , "Refuse to vote" , "Formally decline to vote" , "Withhold one's vote" .)