Sits for an artist (5)
I believe the answer is:
poses
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sits for an artist</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 poses that I've seen before include "Posse (anag.)" , "presents" , "Sits for artist" , "Sits (for artists)" , "is ready for photo" .)