It's better coming from him, proverbially (7)

I believe the answer is:
improve
'it's better' is the definition.
('improve' can be a synonym of 'better')
'coming from him proverbially' is the wordplay.
'coming from' indicates a hidden word.
'IMPROVE' is hidden within 'him proverbially'.
(Other definitions for improve that I've seen before include "Get or make better" , "Ameliorate" , "Polish" , "pick up" , "Make progress" .)