Answer:

invitee

Answer	Crossword Clue
INVITEE	Potential guest
INVITEE	RSVPer
INVITEE	Potential no-show

INVITEE	Recipient of RSVP note.
INVITEE	Guest
INVITEE	Welcome guest
INVITEE	One asked to R.S.V.P.
INVITEE	Private party attender
INVITEE	Noncrasher
INVITEE	Welcomed one

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.