Blank (6)
I believe the answer is:
ignore
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">blank</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 "Deliberately take no notice" , "Disregard - cut" , "Region in which to snub" , "Intentionally disregard" , "Pay no attention to, disregard" .)