Clue: Ref. staple

Answer: OED

Length: 3

---

Similar Clues:

• Reference section staple (ALMAC with 5 letters)
• Reference shelf staple (WHOSWHO with 7 letters)
• Berliner's refusal (e.g. NEIN with 4 letters)
• Took a refresher course? (ATE with 3 letters)
• Reference aid (INDEX with 5 letters)
• Reformer of musical note system (GUIDO with 5 letters)
• Staple of Indian cuisine (e.g. NAAN with 4 letters)
• Renoir's refusals (NONS with 4 letters)
• Refreshment stand order (LARGECOKE with 9 letters)
• Checked in a reference book (LOOKEDUP-2 with 10 letters)