Not finished (10)
I believe the answer is:
incomplete
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">not finished</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 incomplete that I've seen before include "Not yet finished" , "Unfinished" , "not sufficient" , "Lacking" , "Inadequate" .)