Locate it in the Kentish area (4)
I believe the answer is:
site
'locate' is the definition.
(I know that locate can be written as site)
'it in the kentish area' is the wordplay.
'in the' is an insertion indicator.
'kentish area' becomes 'SE' (South East of England).
'it' placed within 'se' is 'SITE'.
(Other definitions for site that I've seen before include "Locale" , "Situation (of a building)" , "Web location; place" , "internet location" , "Building plot" .)