Clue: Invitation inits.

Answer: RSVP

Length: 4

---

Similar Clues:

• Inits. on an invitation (BYOB with 4 letters)
• Party invitation inits. (BYO with 3 letters)
• Mind reader's inits. (ESP with 3 letters)
• Big film inits. (MGM with 3 letters)
• Inits. associated with Hyde (RLS with 3 letters)
• Old French Communist Party of Canada inits. (hidden in EPCOT) (PCO with 3 letters)
• J.F.K. inits. (TSA with 3 letters)
• Summer party invitation letters (BBQ with 3 letters)
• Pricey handbag inits. (YSL with 3 letters)
• Want ad inits. (e.g. EEO with 3 letters)