Related Clues:

• Sharp-witted
• Finely sharpened
• Nippy
• Nonchalant
• Like Arthur Fonzarelli
• Corking
• Peachy keen
• Fan setting
• Like some cats?
• Piercing
• 'Marvy!'
• It may be peachy
• Marvelous, informally
• "Rad!"
• "Sweet!"