Related Clues:

• In Egyptian mythology, the goddess of the sky
• Fruit in shell
• Operating expenses, in slang
• Almond, for example
• Lunatic, slangily
• Acorn, for one
• Head of Brazil, perhaps
• Hollow fastener
• Fruit container turned over
• Fruit served with a cracker?
• Hexagonal hardware
• Venture-launching cost, informally
• It may be busted in bed
• Wackadoodle
• Tough thing to crack