Related Clues:

• 'Really!'
• Start of an oath
• 'Honest'
• ''No kidding!''
• 'It's the truth!'
• ''Honest!''
• "Honest!"
• 'Honest!'
• 'Seriously!'
• ''Cross my heart!''
• "Cross my heart!"
• ''It's true, really!''
• "It's the truth!"
• 'No, really!'
• ''Really and truly!''