Rebuke suspect a lot around periphery of Kent (4,2)

'rebuke' is the definition.
(talk to can mean to rebuke or tell off someone)

'suspect a lot around periphery of kent' is the wordplay.
'suspect' indicates anagramming the letters (a suspicious or unusual spelling).
'around' indicates putting letters inside.
'periphery of' means to remove the middle letters (only the letters on the periphery or edge).
'kent' with its middle taken out is 'kt'.
'a'+'lot'='alot'
'alot' with letters rearranged gives 'talo'.
'talo' going around 'kt' is 'TALK TO'.