Related Clues:

• ''I guess so''
• ''___ a far, far better thing ...'' (Dickens)
• ''For sure!''
• Shout of satisfaction
• Confirmation word
• "For real?"
• "You know how ---"
• Marv Albert signature call
• "90125" band
• 'What is it?'
• 'I reckon so'
• Formal 25-Across
• Referendum option
• I do
• 'I'll do it!'