Dutch painter (4)
I believe the answer is:
hals
'dutch painter' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for hals that I've seen before include "Painter of The Laughing Cavalier, d. 1666" , "Sixteenth to seventeenth century Dutch artist known for portraits" , "Frans --, Dutch artist" , "portrait painter" , "Laughing Cavalier artist" .)