Including everything spent (3,2)
I believe the answer is:
all in
I believe this clue is a double definition.
'including everything' is the first definition.
(I've seen this before)
'spent' is the second definition.
('all in' can mean exhausted)
(Other definitions for all in that I've seen before include "Quite exhausted - everyone at home" , "Totally inclusive" , "Including everything" , "Utterly exhausted - everyone home" , "Totally exhausted" .)