Related Clues:

• U-turn for tyro
• It's a layer
• Farm's producer
• Surgeon’s brief ban
• Lady Leghorn
• Farm squawker
• Boxer doctor
• One laying an egg
• Give a careful examination, say
• Dog diagnoser
• 'Chicken Run' creature
• Mama lobster
• Zoo pro
• One having an egg?
• 'An egg's way of making another egg': Samuel Butler