Second intrigue at church making a splash (7)
I believe the answer is:
splotch
'a splash' is the definition.
(thesaurus)
'second intrigue at church' is the wordplay.
'second' becomes 's' (common abbreviation).
'intrigue' becomes 'plot' (I've seen this in another clue).
'at' is a charade indicator (letters next to each other).
'church' becomes 'ch' (common abbreviation).
's'+'plot'+'ch'='SPLOTCH'
'making' is the link.
(Other definitions for splotch that I've seen before include "Mark" , "Spot, splash, smear" .)