Related Clues:

• 'Let's do it!'
• Encouraging word
• 'Right'
• 'Undeniably'
• Thumbs-up response
• Never-failing
• 'Amen!'
• Agreeable reply
• 'No sweat'
• Direct-mail sticker
• 'That's a go'
• “Absolutely!”
• Truly
• Assent
• 'And how!'