Related Clues:

• Info at SFO
• Sorority letter, perhaps
• Touchdown info
• Zeta-theta separator
• Pilot's prediction: Abbr.
• Getting-in approx.
• H, to Socrates
• Flight-board info: Abbr.
• Fence opening
• Way to get out of a field
• Guess at JFK
• Frat's seventh chapter
• Hellene's H
• H, as in Hellas
• Plato's "H"