Duenna (8)
I believe the answer is:
chaperon
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">duenna</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for chaperon that I've seen before include "One accompanies to supervise" , "Duenna; look after" , "Accompany and look after" , "Preach on about older woman supervisor" , "Preach on about older woman in charge of girl" .)