Turn a blind eye to (6)
I believe the answer is:
ignore
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">turn a blind eye to</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 ignore that I've seen before include "Forget" , "Region (anag)" , "Refuse to notice or acknowledge" , "Spurn" , "bypass" .)