Related Clues:

• "Super-duper!"
• Without ice, at a bar
• 'Very cool!'
• Free of clutter
• Cool, in the '50s
• With no rocks
• Like Felix Unger
• Beatles' descriptor
• ''Nifty!''
• ___ as a pin
• 'Peachy keen!'
• Straight up, to a bartender
• "Far out"
• "Swell"
• Sans ice or a mixer