Possible Clues:

• Sale of goods individually
• Wholesale's antithesis
• Narrate or sell to public
• That's not the whole of the sale; it's just about the end of it
• Relate details about dog
• That's about the last sort of business you'd have
• To get involved with it, real business may be done
• The sort of business three blind mice could be lookingfor
• That's business, and it is in train
• A tree in the hole, by thesound of it.