Overtake a guy going to church (5)
I believe the answer is:
catch
'overtake' is the definition.
(thesaurus)
'a guy going to church' is the wordplay.
'a guy' becomes 'cat' (American slang for man, esp in Jazz).
'going to' is a charade indicator (letters next to each other).
'church' becomes 'ch' (common abbreviation).
'cat'+'ch'='CATCH'
(Other definitions for catch that I've seen before include "a sort of 22" , "potential partner?" , "Get a grip on" , "Snag; be in time for (train)" , "Grab; trick; fastener" .)