Pale, wan (5)
I believe the answer is:
ashen
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">pale</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">wan</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for ashen that I've seen before include "Wan - wooden - pallid" , "of Tree" , "(Of face) pale with fear" , "Greyish" , "Grey in colour" .)