Bottom line (3,6)
There are a few possibilities for this:
net profit
'bottom line?' is the definition.
(bottom line is a kind of sum)
This is the entire clue.
(Other definitions for sum that I've seen before include "An additional problem" , "Whole" , "Arithmetical problem" , "Amount of money; add" , "All one has" .)
'bottom line?' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for hem that I've seen before include "Border; fringe" , "Express hesitation" , "Double-backed border of a garment" , "Sewn edge to fabric" , "A stitched border of cloth" .)
'bottom line?' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for net that I've seen before include "Fish trap after deductions?" , "Butterfly trap" , "Lattice" , "Mesh; after tax" , "Open-mesh material" .)
'bottom line' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for net profit that I've seen before include "Excess of sales over costs for potent fir" , "Actual money to be made" , "return from business" , "Earnings after all deductions" , "What's finally made" .)