Ring that fellow in church (5)
I believe the answer is:
chime
'ring' is the definition.
(thesaurus)
'that fellow in church' is the wordplay.
'that fellow' becomes 'him' (**).
'in' indicates putting letters inside.
'church' becomes 'ce' (abbreviation for Church of England).
'him' put into 'ce' is 'CHIME'.
(Other definitions for chime that I've seen before include "Ring; harmonise" , "Bell's sound" , "Sound of bell - agree" , "Melodious bell sound" , "Agree (with); ring" .)