Bribe (8)
'bribe' is the definition.
(I know that kickback is a type of bribe)
This is all the clue.
(Other definitions for kickback that I've seen before include "Bribe paid by seller to purchasing agent" , "Recoil; illicit payment" , "strong reaction" , "special gift" , "(Illicit) confidential payment to facilitator" .)
'bribe' is the definition.
(sop can mean a concession or bribe)
This is the entire clue.
(Other definitions for sop that I've seen before include "Concession of philosophy" , "Concession given to mollify or placate" , "A bribe or appeasement" , "usual way of doing things, initially" , "Bread dipped in gravy" .)