Related Clues:

• Enthusiasm — grated lemon peel
• Relish — orange peel
• Ennui opposite
• Passion for life
• Twist at a bar
• Dial competitor
• Last letter and mail sent to holy man in high spirits
• Limoncello ingredient
• Enthusiasm or outer skin of citrus fruit
• Peel in a cocktail
• Great relish
• Garda left stargazed with passion
• Relish, enthusiasm
• Keen interest, but it's a bit of a lemon
• Enthusiasm, energy