Capital of the Democratic Republic of the Congo (8)
I believe the answer is:
kinshasa
'capital of the democratic republic of the congo' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for kinshasa that I've seen before include "It was formerly Leopoldville" , "African capital on the Congo River" , "Capital of the Democratic Republic of the Congo" , "Congolese capital" , "Capital of Dem Rep of the Congo" .)