Meant to become a painter (5)
I believe the answer is:
manet
'a painter' is the definition.
(thesaurus)
'meant to become' is the wordplay.
'to become' indicates an anagram.
'meant' with letters rearranged gives 'MANET'.
(Other definitions for manet that I've seen before include "Painter of Le Dejeuner sur l'herbe, d. 1883" , "Olympia painter" , "French painter" , "artistic individual" , "Edouard -- (artist)" .)