Artist’s crayon (6)
I believe the answer is:
pastel
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">artist's crayon</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for pastel that I've seen before include "Staple (anag)" , "Drawing crayon; light shade" , "Of a colour, subtle" , "Type of crayon" , "Pleats of a light colour" .)