Head cook entertaining India's leader (5)
I believe the answer is:
chief
'head' is the definition.
(I know that head can be written as chief)
'cook entertaining india's leader' is the wordplay.
'cook' becomes 'chef' (both can mean someone who cooks).
'entertaining' means one lot of letters goes inside another (inviting in, as for dinner).
'leader' says to take the initial letters.
The first letter of 'indias' is 'i'.
'chef' enclosing 'i' is 'CHIEF'.
(Other definitions for chief that I've seen before include "Tribe leader" , "Person in charge, head" , "Ordinary type" , "Principal" , "Tribal head" .)