Yellowish (6)
I believe the answer is:
sallow
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">yellowish</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for sallow that I've seen before include "Sickly yellowish colour" , "Sickly complexion" , "(Of a complexion) pale brown or yellowish" , "Pasty-faced" , "Of skin, yellowish in colour" .)