Related Clues:

• Like many a fall day
• "That's wonderful!"
• Self-controlled
• Beatnik's 'groovy'
• Not nerdy
• Calm and controlled
• In the 40's, say
• Put in the fridge
• Level-headed
• Tremendous
• 'Sweet!'
• Hard to fluster
• Calm and relaxed
• Excellent!
• Beatnik's 'all right'