Managed part of show as revolutionary turned up (7)
I believe the answer is:
oversaw
'managed' is the definition.
('oversee' can be a synonym of 'manage')
'part of show as revolutionary turned up' is the wordplay.
'part of' says the answer is hidden in the clue.
'turned up' says the letters should be written backwards.
'wasrevo' is hidden in the letters of 'show as revolutionary'.
'wasrevo' reversed gives 'OVERSAW'.
(Other definitions for oversaw that I've seen before include "Managed" , "What supervisor did" , "Supervised" , "watcher" .)