Contempt for southern cereal (5)
I believe the answer is:
scorn
'contempt' is the definition.
(I know that contempt can be written as scorn)
'southern cereal' is the wordplay.
'southern' becomes 's' (abbreviation).
'cereal' becomes 'corn' (corn is a kind of cereal).
's'+'corn'='SCORN'
'for' is the link.
(Other definitions for scorn that I've seen before include "Slight" , "Reject contemptuously" , "Contumely" , "Extreme contempt" , "Disdain or derision" .)