Keep to the right in the Kentish area (5)
I believe the answer is:
store
'keep' is the definition.
(I've seen this before)
'to the right in the kentish area' is the wordplay.
'the right' becomes 'r' (common abbreviation).
'in' is an insertion indicator.
'the kentish area' becomes 'se' (I am not sure about this - if you are sure you should believe this answer much more).
'to'+'r'='tor'
'tor' going within 'se' is 'STORE'.
(Other definitions for store that I've seen before include "Put by; shop" , "Shop; hoard" , "Large shop; keep" , "Stock or supply, or warehouse for them" , "Save" .)