Forgo (5)
I believe the answer is:
waive
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">forgo</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that forgo can be written as waive)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for waive that I've seen before include "pass up" , "Give up" , "Forgo right or claim" , "Surrender" , "Don't insist on" .)