English timeless portrait: 'A Northern Hedonist' (9)
I believe the answer is:
epicurean
'hedonist' is the definition.
(I've seen this before)
'english timeless portrait a northern' is the wordplay.
'english timeless portrait' becomes 'epicure' (I can't justify this - if you can you should give a lot more credence to this answer).
'northern' becomes 'n' (abbreviation e.g. N. Ireland).
'epicure'+'a'+'n'='EPICUREAN'
Can you help me to learn more?
(Other definitions for epicurean that I've seen before include "Given to sensual enjoyment" , "Hedonist" , "One appreciating food and drink" , "immoderate character" , "Hedonistic" .)