Confine some Gujarati militants on the way back (5)
I believe the answer is:
limit
'confine' is the definition.
('limit' can be a synonym of 'confine')
'some gujarati militants on the way back' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'on the way back' says the letters should be written backwards.
'timil' is hidden in the letters of 'gujarati militants'.
'timil' backwards is 'LIMIT'.
(Other definitions for limit that I've seen before include "Boundary or maximum" , "control" , "Ceiling" , "Boundary or restriction" , "Furthest extent" .)