Agree the total (5)
I believe the answer is:
tally
I believe this is a double definition.
'agree' is the first definition.
(I know that agree can be written as tally)
'total' is the second definition.
(I know that total can be written as tally)
'the' is the link.
(Other definitions for tally that I've seen before include "Match - score" , "Square" , "Running total" , "label" , "Score; correspond" .)