be contingent (on) (6)
I believe the answer is:
depend
'be contingent on' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for depend that I've seen before include "Be contingent upon" , "Hang down or be connected to something" , "Be unable to do without, rely" , "Bank" , "Dangle - rely" .)