Cloudy; ashen (4)
I believe the answer is:
grey
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">cloudy</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >'<span class="explanation-format__original">ashen</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for grey that I've seen before include "Ashen" , "Colour; dull and nondescript" , "Unclear (area); dull (weather)" , "Nondescript; overcast (sky)" , "showing his age?" .)