Related Clues:

• Ballot option
• 'Why not!'
• ''Certainly!''
• Skeptical acknowledgement
• ''Why, certainly!''
• Unfailing
• 'Excellent!'
• Concurrence
• Da, somewhere
• Free from doubt
• -
• ''I knew it!''
• Pro vote
• With 45-Across, emphatic assent
• 'That'd be fine'