Related Clues:

• Ja or da
• Sycophant's reply
• Word from the willing
• Celebratory shout
• Rock band since 1968
• Proposal reaction, sometimes
• Prog band whose lead singer was once a milkman
• ''Absolutely''
• "Sure thing!"
• Shout of victory
• 'It's a go'
• Intercom response
• "Go for it!"
• “Of course”
• Fist-pumper's cry