But for the delivery (6)
I believe the answer is:
saving
I believe this clue is a double definition.
'but' is the first definition.
(thesaurus)
'the delivery' is the second definition.
('saving' can be a synonym of 'delivery')
'for' acts as a link.
(Other definitions for saving that I've seen before include "Except; economy" , "Preventing from dying" , "Second World War film with Tom Hanks" , "Putting by for a rainy day" , "Discount" .)