He employs some Hindu servants (4)
I believe the answer is:
user
'he employs' is the definition.
(person who employs)
'some hindu servants' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'USER' is hidden in the letters of 'hindu servants'.
(Other definitions for user that I've seen before include "Tech support caller?" , "Someone who exploits another" , "One getting benefit from" , "Manipulator" , "Patron" .)