Has to go round the corner, being a painter (4)
I believe the answer is:
hals
'a painter' is the definition.
(thesaurus)
'has to go round the corner' is the wordplay.
'to go round' indicates putting letters inside.
'the corner' becomes 'l' (I can't justify this - if you can you should believe this answer much more).
'has' going around 'l' is 'HALS'.
'being' is the link.
Can you help me to learn more?
(Other definitions for hals that I've seen before include "Frans - , Dutch painter (The Laughing Cavalier)" , "Sixteenth to seventeenth century Dutch artist known for portraits" , "portrait painter" , "Laughing Cavalier artist" , "Frans --, Dutch artist" .)