Possible Clues:

• Risky enterprise -- two chaps duped
• Awful bread — yet sold out
• Two-timed
• Was unfaithful to Elizabeth to begin with at Derby race
• Double-crossed
• Sounds like steak and fish starters for evening dinner sold down the river
• Wager Ed, stocking fish, is sold out
• Delivered a friend to an enemy
• Double-crossed, was disloyal