Incomplete, imperfect (10)
I believe the answer is:
unfinished
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">incomplete</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >'<span class="explanation-format__original">imperfect</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ ></span>
(Other definitions for unfinished that I've seen before include "rough" , "3 18 ... in B minor" , "Not concluded" , "Schubert's Eighth, for example" .)