Related Clues:

• Antithesis of apathy
• Lemon-rind shavings
• Prompt willingness
• Grated lemon rind
• Peel product
• Bartender's twist
• Fanatic's feeling
• Tartness
• Enthusiastic enjoyment
• Sorbet ingredient
• Citrusy addition to some risotto
• Superfan's trait
• Vigour
• Citrus peel used in cooking
• Lively energy