Keep to the right in the Kentish area (5)
I believe the answer is:
store
'keep' is the definition.
(storing is a kind of keeping)
'to the right in the kentish area' is the wordplay.
'the right' becomes 'r' (common abbreviation).
'in the' means one lot of letters goes inside another.
'kentish area' becomes 'SE' (South East of England).
'to'+'r'='tor'
'tor' placed 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" .)