Answer: rsvp

AnswerCrossword Clue
RSVPIt may consist of regrets
RSVP"Let us know," initially
RSVPLetters before a phone no., maybe
RSVP"Let us know if you're coming" letters
RSVP"Let us know," on an invitation
RSVP"Please answer"
RSVPIt may involve regrets
RSVPLetters before a phone no., perhaps
RSVPPart of a prospective bride's pile
RSVPRequest from a party leader
RSVPAbbr. on an invitation
RSVPIt may be followed by a phone no.
RSVPLetters sometimes preceding a phone no.
RSVP"Let us know," to an invitee
RSVPSASE contents, perhaps
RSVPShort answer?
RSVPBrief answer?
RSVPAnswer an invite
RSVPLet us know, in an invite
RSVPLetters on reply cards
RSVPRequest in an invitation
RSVPAlert the host
RSVPRespond to an invitation
RSVPCall-back request
RSVPSASE answer
RSVPInvitation request
RSVPParty giver's abbr.
RSVPReply, as to an event invitation
RSVPAnswer an invitation
RSVP"Regrets only" alternative
RSVPLetters needing reply
RSVPInvitation letters
RSVPNotify the host
RSVPHost's request
RSVPInvitation initialism
RSVPEvite request
RSVP"Please answer," on an invitation
RSVPParty invitation request
RSVPRequest to an invitee
RSVP"Let me know," on an invitation