Work of art seldom produced (3,6)
I believe the answer is:
old master
'work' is the definition.
(I have seen 'great work' mean 'old master' so perhaps 'work' could also mean 'old master')
'art seldom produced' is the wordplay.
'produced' indicates anagramming the letters.
'art'+'seldom'='artseldom'
'artseldom' is an anagram of 'OLD MASTER'.
'of' acts as a link.
(Other definitions for old master that I've seen before include "Liege lord" , "Mr Chips, say?" , "Great painting of former times" , "Classic painter" , "Could get a picture" .)