Got it wrong (5)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">got it wrong</span>' is the definition.<br/ ><span class="explanation-format__explanation">(to err is to do wrong or go wrong)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for erred that I've seen before include "Gone astray!" , "slipped up" , "Strayed from the straight and narrow" , "Made a mistake, was wrong" , "Went wrong" .)