Related Clues:

• Y, at times
• Any monogram initial
• Piece of snail mail
• E.g. A, but not B
• One of five which occur in books
• Character; missive
• Written note
• Open sound in speech
• Missive, character
• Perhaps a cigarette lighter's held upside down
• Character; landlord
• Landlord's correspondence
• Written communication
• Alphabetic symbol
• A, E, I, O or U