Related Clues:

• Show starter?
• Part of EST
• Ar follower
• Beginning or end of "Spartacus"
• Ar-tee connector
• Ending for heir or steward
• Superman logo
• Tricky turn
• Two-way curve
• 20-Across path
• Part of PST
• Double-180 maneuver
• Superman's symbol
• No. to measure against
• Start of start?