Related Clues:

• Impossible to fail
• Girl keeps king safe
• "No problem!"
• Goof-proof
• Definite sign of an increase
• "I certainly will!"
• 'What-ev-er you say ...'
• Assume I have to be encouraging
• Sure, convinced
• 'Okeydokey'
• Doubtless, it follows plea for enjoyment
• 'I can do that!'
• ''I'd be glad to''
• Lacking question marks
• 'A Boy Named ___' [Confident]