Delight in generating pure art (7)
I believe the answer is:
rapture
'delight' is the definition.
(I've seen this in another clue)
'generating pure art' is the wordplay.
'generating' indicates an anagram (I've seen 'generated' mean this).
'pure'+'art'='pureart'
'pureart' anagrammed gives 'RAPTURE'.
'in' acts as a link.
(Other definitions for rapture that I've seen before include "Transports of delight" , "Sheer bliss or ecstasy" , "modified for Nanki-Poo?" , "transport" , "State of bliss and euphoria" .)