Related Clues:

• Opposite of 21-Across
• Certain definitive response
• "That's right!"
• Word before 'dear' or 'sir'
• Word with ''I do''
• "For sure!"
• For sure
• Classic-rock group
• Response to a brother?
• Word said before a meal, perhaps
• Service ender
• Enthusiastic assent
• 'I'm game!'
• Solemn agreement
• ''Okay!''