Good deal for item to be sold (3)
I believe the answer is:
lot
I believe this is a double definition.
'good deal' is the first definition.
('lot' can be a synonym of 'good deal')
'item to be sold' is the second definition.
(item in an auction)
'for' acts as a link.
(Other definitions for lot that I've seen before include "Survivor in Sodom" , "Abraham's nephew - assigned share" , "Unit of sale at auction" , "Nephew of Abraham - batch" , "His Biblical wife was turned to a pillar of salt" .)