Related Clues:

• 57-Across, to Brutus
• "Doggone it!"
• In vitro items, perhaps
• Ovoid objects
• Cato's eggs
• "Curses!"
• "Blast it!"
• Old eggs?
• Fertility clinic stock
• "Peanuts" plaint
• Eggs, to a biologist
• Would-be chicks
• ''Phooey!''
• ''Darn!''
• Exterminator's targets, sometimes