Related Clues:

• Midwest city, on scoreboards
• Bears' home, briefly
• Sorority chapter
• Greek antepenultimate
• See 41-Across
• Psi's preceder
• P on the Parthenon
• Windy City, for short
• Christogram component
• 17th chapter
• 17th Greek letter
• Pi-sigma connection
• Pythagorean P
• X, as in Xenophon
• Life force, to an acupuncturist