Related Clues:

• Pilot's prediction, for short
• Letter after zeta
• Letter from Corinth
• Greek I
• Teeniest Greek letter?
• H
• JFK guesstimate
• Zeta follower
• Letter before kappa
• Small bit
• It's H-shaped
• Terminal info
• Pilot's announcement, briefly
• Insignificant amount
• Sweater letter