Related Clues:

• Relish — orange peel
• Ennui opposite
• Passion for life
• Boundless enthusiasm
• Twist at a bar
• Groupie's trait
• Dial competitor
• Last letter and mail sent to holy man in high spirits
• (Excessive) fervour
• Limoncello ingredient
• Enthusiasm or outer skin of citrus fruit
• Citrus shavings
• What's less than blaze, a little fire
• Peel in a cocktail
• Great relish