Related Clues:

• Like a sure-to-succeed proposition
• Sure to work
• Completely safe, as a proposition
• Putting zip on the line
• Completely safe
• Money-back, maybe
• Like an ideal negotiation
• Win-win
• Sure-to-succeed
• Lacking a downside
• Investment descriptor that should sound alarms
• Surefire
• Free of danger
• Riskless
• Can't-lose