Bouquet thrown outside front of church (5)
I believe the answer is:
scent
'bouquet' is the definition.
(thesaurus)
'thrown outside front of church' is the wordplay.
'thrown' becomes 'sent'.
'outside' indicates putting letters inside.
'front of' says to take the initial letters.
The first letter of 'church' is 'c'.
'sent' enclosing 'c' is 'SCENT'.
(Other definitions for scent that I've seen before include "Fragrance" , "Clue" , "Bouquet" , "Trail" , "Animal smell" .)