Initial request for an answer? (4)

I believe the answer is:

rsvp

(Other definitions for rsvp that I've seen before include "Answer the invitation briefly, please" , "Brief notation to say, answer the invitation" , "Please answer the invitation, monsieur" , "Can you come to the party?" , "Letters on an invitation" .)

I've seen this clue in The Washington Post, the L.A. Times Daily and the LA Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.