Name for one half of Kent (3)
I believe the answer is:
ike
'name' is the definition.
'one half of kent' is the wordplay.
'one' becomes 'i' (roman numeral).
'half of' indicates taking half.
'kent' halved is 'ke'.
'i'+'ke'='IKE'
'for' acts as a link.
(Other definitions for ike that I've seen before include "US general who became president, in short" , "President Eisenhower's nickname" , "Dwight D. Eisenhower, in short" , "President Eisenhower" , "Nickname for Dwight Eisenhower" .)