Where one might find better Irish impressionist (6)
I believe the answer is:
renoir
'impressionist' is the definition.
(I have seen 'French Impressionist ' mean 'renoir' so perhaps 'impressionist' could also mean 'renoir')
'where one might find better irish' is the wordplay.
'where one might find better' becomes 'reno' (I can't justify this - if you can you should give a lot more credence to this answer).
'irish' becomes 'IR' (abbreviation for Irish).
'reno'+'ir'='RENOIR'
Can you help me to learn more?
(Other definitions for renoir that I've seen before include "Pierre Auguste ---, painter; Jean ---, film-director" , "'No, I err, he was a painter (6)'" , "Fr. impressionist ('La Loge')" , "French impressionist painter, d. 1919" , "French artist" .)