Possibly start with profile for this sort of painting? (4-8)
I believe the answer is:
self-portrait
'painting?' is the definition.
(I've seen this before)
'possibly start with profile' is the wordplay.
'possibly' is an anagram indicator.
'with' is a charade indicator (letters next to each other).
'start' put after 'profile' is 'profilestart'.
'profilestart' anagrammed gives 'SELF-PORTRAIT'.
'for this sort of' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for self-portrait that I've seen before include "Picture of its artist" , "Artist's own picture" , "Painting of the artist by the artist" .)