Ring that fellow within Chile's borders (5)
I believe the answer is:
chime
'ring' is the definition.
(eg a bell chimes or rings)
'that fellow within chile's borders' is the wordplay.
'that fellow' becomes 'him' ('him' refers to a man).
'within' is an insertion indicator.
'borders' suggests removing the centre (only the edge or border letters remain).
'chile' with its centre removed is 'ce'.
'him' put within 'ce' is 'CHIME'.
(Other definitions for chime that I've seen before include "Clang" , "Melodious bell sound" , "Agree (with); ring" , "Ring; harmonise" , "Harmonise, peal" .)