Rogue state needs to be buried (7)
I believe the answer is:
cadaver
'needs to be buried' is the definition.
(a cadaver needs to be buried)
'rogue state' is the wordplay.
'rogue' becomes 'cad' (I've seen this before).
'state' becomes 'aver' (I've seen this before).
'cad'+'aver'='CADAVER'
(Other definitions for cadaver that I've seen before include "Remains of a human" , "A kind of corpse" , "Human corpse" , "Human body dissected by medical students" , "Stiff" .)