Possible Clues:

• Merrill Lynch employee, e.g.
• One's business is to get up one's ruddy craft
• Businessman on speed regressing
• Western movie entrepreneur
• He buys and sells goods
• Does the ruddy painting turn up at 10 across?
• One is back about the point of it in business
• Dealer putting up crimson paintings?
• Dealer returning paintings from Moscow?
• Up with about the point of business for one