Related Clues:

• Trains to the Loop
• Building additions
• Add-ons
• Extensions
• They're seven positions after today's theme
• See 26-Down
• U.S. Open champ Ernie
• Some wings
• Loop loopers
• High rollers?
• Chicago sights
• Some annexes
• Ernie of the P.G.A.
• Overhead trains
• Some extensions