Confesses (4,2)
I believe the answer is:
owns up
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">confesses</span>' is the definition.<br/ ><span class="explanation-format__explanation">(to own up is to confess)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for owns up that I've seen before include "'Comes clean, confesses (4,2)'" , "Admits (to something)" , "Admits blame" , "Allows" , "Confesses, admits guilt" .)