Bury in the hinterlands (5)
I believe the answer is:
inter
'bury' is the definition.
('inter' can be a synonym of 'bury')
'in the hinterlands' is the wordplay.
'in' indicates a hidden word.
'INTER' is hidden within 'hinterlands'.
(Other definitions for inter that I've seen before include "somewhere between ..." , "Put underground" , "Place into grave, tomb" , "promoting cessation" , "foreign team" .)