Related Clues:

• Encl. with an autograph request letter
• Drug that reduces excitability
• Return-mail enc.
• MS attachment
• Ready-to-mail item: Abbr.
• Morphine or codeine
• Heroin, for one
• Mailing courtesy, briefly
• MS enclosure
• Tending to calm
• Morphine or codeine, e.g.
• Religion, to Marx
• Mail-enclosure courtesy: Abbr.
• Religion, to the masses, per Marx
• Encl. with a sweepstakes entry