Related Clues:

• Big Ten team
• 'Oh boy!'
• 'That hurts!'
• Siouan tribe
• 'Field of Dreams' setting
• Part of the Louisiana Purchase
• Hawkeye State
• Part of the Corn Belt
• Presidential caucus state
• See 6-Down
• Des Moines is its capital
• 'State Fair' setting
• Corn locale
• Where Buffalo Bill was born
• Big Ten school