Agreed to have everything drawn out (7)
I believe the answer is:
tallied
'agreed' is the definition.
('tally' can be a synonym of 'agree')
'everything drawn out' is the wordplay.
'everything' becomes 'all' (I've seen this before).
'drawn' becomes 'tied' ('tie' can be a synonym of 'draw').
'out' is an insertion indicator.
'all' put within 'tied' is 'TALLIED'.
'to have' acts as a link.
(Other definitions for tallied that I've seen before include "Agreed, corresponded" , "Agreed; calculated" , "Corresponded - kept score" , "Reckoned debt or score" , "Matched" .)