Three-legged stand (5)
I believe the answer is:
easel
'three-legged stand' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for easel that I've seen before include "Frame for a canvas" , "Artist's wooden frame" , "Artist's canvas holder" , "Lease out the stand" , "Tripod for an artist" .)