Related Clues:

• Mixed lemon in with a tangelo
• A citrus fruit
• Audibly threatening and cross
• ___ fruit (tangelo variety)
• Bad-looking fruit?
• -- fruit (tangelo kin)
• Fruit, cross between grapefruit and tangerine
• Fruit, cross between grapefruit and orange
• Fruit popular with the Italian
• Fruit of unpleasant appearance, so it's said
• Fruit which customer for duckling suggested
• Fruit picked up regularly throughout silly glut
• Fruit's unpleasant, you'd have to say
• Fruit of regular visits to bungaloid
• Something fruity in jug -- lime?