Related Clues:

• It may be used for many unhappy returns: Abbr.
• Ed.'s request, often
• RSVP card enclosure
• Impress greatly
• Submission encl.
• "Impressive!"
• ''I'm amazed!''
• Encl. with an RSVP
• "Holy guacamole!"
• ''Holy smoke!''
• ''That's impressive!''
• ''Unbelievable!''
• Postage-paid enc.
• R.S.V.P. enclosure
• Manuscript encl.