Related Clues:

• See 11-Down
• Letter opener
• Sgt.'s mail drop
• Military address
• See 8-Down
• Sgt.'s address
• Part of a milit. address
• Show respect to
• Part of a G.I.'s address
• Word for a superior
• Title of respect
• Mail letters
• Elton John, e.g.
• Elton John or Mick Jagger
• Knight, by definition