Club in Milan shifted painter to rendering (14)
I believe the answer is:
interpretation
'rendering' is the definition.
('interpretation' can be a synonym of 'rendering')
'club in milan shifted painter to' is the wordplay.
'club in milan' becomes 'inter' (I can't justify this - if you can you should give a lot more credence to this answer).
'shifted' indicates anagramming the letters.
'painter'+'to'='painterto'
'painterto' is an anagram of 'pretation'.
'inter'+'pretation'='INTERPRETATION'
Can you help me to learn more?
(Other definitions for interpretation that I've seen before include "Analysis" , "Way of explaining" , "Individual delivery of a dramatic role" .)