Powerful through taking charge after revolution (5)
I believe the answer is:
beefy
'powerful' is the definition.
(thesaurus)
'through taking charge after revolution' is the wordplay.
'through' becomes 'by'.
'taking' indicates putting letters inside.
'charge' becomes 'fee' (fee is a kind of charge).
'after revolution' shows that the letters should be reversed in order (letters revolve back).
'fee' in reverse letter order is 'eef'.
'by' enclosing 'eef' is 'BEEFY'.
(Other definitions for beefy that I've seen before include "Muscular, robust" , "Solid" , "Muscularly well-developed" , "Colloquially muscular" , "like some bully?" .)