Related Clues:

• Kind of agent
• Whispered words
• Kept under wraps
• It may be hard for one person to carry
• Under wraps
• Skeleton in the closet
• Surreptitious
• Spy's quest
• Not meant to be repeated
• Whispered item
• Covert
• Ban competition
• The untold story?
• It may be hard to keep
• Spy's find