Producer of new art genre accepts Oscar (9)
I believe the answer is:
Here is my best explanation:
'producer' is the definition.
'new art genre accepts oscar' is the subsidiary indication.
'new' indicates an anagram.
'accepts' is an insertion indicator.
'oscar' becomes 'o' (phonetic alphabet: alpha, bravo, charlie etc.).
'artgenre' anagrammed gives 'generatr'.
'generatr' placed around 'o' is 'generator'.
'of' is the link.
(Other definitions for generator that I've seen before include "Electricity producer", "meant to be electrifying?", "juice maker", "Engine to produce electricity", "Power source", "Dynamo or similar machine", "Eg, dynamo", "It gives power", "Device creating electrical energy" and "Existing in name only".)