Related Clues:

• Subway relatives
• See 55-Down
• South African golfing great
• Two in a billion?
• Loop trains
• Cid and Greco
• 2002 British Open champ
• Tiger Woods rival, Ernie
• Windy City trains
• Clattery transports
• Windy City transports
• Ernie of the links
• Some rail lines
• Golf champ Ernie
• Chicago transports