Riches, cynically (6,5)
I believe the answer is:
filthy lucre
'riches cynically' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for filthy lucre that I've seen before include "Money, disparagingly" , "Sordid gain" , "Ill-gotten wealth" , "Dishonourably obtained money (colloq.)" .)