Related Clues:
- Letters sometimes seen before a phone no
- Initial request for an answer?
- Host-to-be's request
- Be a polite invitee
- ''Save the date'' follow-up
- Aid for an early head count
- Supervisors drop serious summons from The Party requesting answer
- Party abbr. about drinks
- Use an SASE, perhaps
- It may contain regrets
- E-vite request
- Letters on a frat party invitation
- Click yes or no on an e-vite, say
- Evite request
- Letters on a wedding invitation