City of Northern Aragon's premier painter? (6)
I believe the answer is:
nagoya
'city' is the definition.
(I have seen 'Japanese city' mean 'nagoya' so perhaps 'city' could also mean 'nagoya')
'northern aragon's premier painter?' is the wordplay.
'premier' says to take the initial letters.
'painter?' becomes 'Goya' (Spanish painter Francisco Goya).
The initial letters of 'northern aragon' is 'na'.
'na'+'goya'='NAGOYA'
'of' is the link.
(Other definitions for nagoya that I've seen before include "Eastern city" , "central Japanese city" , "City in central Japan" , "Asian city" .)