Not innocent (6)
I believe the answer is:
guilty
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">not innocent</span>' is the definition.<br/ ><span class="explanation-format__explanation">('guilty' is the opposite to 'innocent')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for guilty that I've seen before include "Responsible for a crime" , "(Found) responsible for offence" , "Jury verdict - the accused did it" , "Blameworthy, at fault" , "Responsible for a reprehensible act" .)