Cheney predecessor (4)
I believe the answer is:
gore
'cheney predecessor' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for gore that I've seen before include "Blood; stab with tusk" , "Clotted blood" , "Impale" , "Pierce with horn - blood" , "Pierce or wound with a horn or tusk" .)