Related Clues:

• 'Way out!'
• ''Why, certainly!''
• 'Excellent!'
• Concurrence
• Da, somewhere
• ''Keen!''
• Far out
• -
• ''I knew it!''
• Pro vote
• ''Groovy!''
• With 45-Across, emphatic assent
• Cool!
• 'You got it'
• Conciliatory response