Capital leads to totalitarian bourgeois imperialism losing its social infrastructure (7)
I believe the answer is:
tbilisi
'capital' is the definition.
(capital of georgia)
'leads to totalitarian bourgeois imperialism losing its social infrastructure' is the wordplay.
'leads to' suggests taking the first letters.
The first letters of 'totalitarian bourgeois imperialism losing its social infrastructure' is 'TBILISI'.
(Other definitions for tbilisi that I've seen before include "Capital city of Georgia" , "Georgian capital" , "Georgian city" , "Georgian place" .)