City wasn't prepared for revolution (6)
I believe the answer is:
warsaw
'city' is the definition.
(Warsaw is an example)
'wasn't prepared for revolution' is the wordplay.
'wasn't prepared' becomes 'was raw'.
'for revolution' is a reversal indicator (letters revolve back).
'wasraw' back-to-front is 'WARSAW'.
(Other definitions for warsaw that I've seen before include "Polands capital" , "European city (with a Convention for commercial flying)" , "Largest city in Poland" , "Poland's largest city" , "1929 international agreement regulating commercial air transport" .)