Related Clues:

• 'Cool beans!'
• ''Oh, cool!''
• Well kept up
• Tidily organized
• Sarcastic expression of enthusiasm
• Impressive and then some
• Ship-shape
• 'Super-duper!'
• "Awesome!" '80s-style
• Atomic-energy unit
• 'Outstanding, man!'
• Unlike many a dorm room
• Def
• Mess-free
• '80s movie exclamation