Quiet, depressed (7)
I believe the answer is:
subdued
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">quiet</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know this)</span><br/ ><br/ >'<span class="explanation-format__original">depressed</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ ></span>
(Other definitions for subdued that I've seen before include "'Restrained, low-key (7)'" , "Quietened, brought under control" , "Quieted and brought under control" , "Chastened" , "reserved" .)