Outlay (7)
'outlay' is the definition.
(expenditure is a kind of outlay)
This is the entire clue.
(Other definitions for expenditure that I've seen before include "Cash paid out" , "Outlay - index up tree (anag)" , "Amount of money spent" , "It's laid out" .)
'outlay' is the definition.
(I know that expense is a type of cost)
This is all the clue.
(Other definitions for expense that I've seen before include "damage" , "Money spent in the course of work" , "Disbursement" , "What something costs" , "Cost - price" .)
(Other definitions for blueprint that I've seen before include "Technical drawing" , "Formula" , "Original design" , "sketch" , "Design plan" .)