Clue: Extra-wide, on a box

Answer: EEE

Length: 3

---

Similar Clues:

• Onstage extra during an aria, for short (SUPE with 4 letters)
• "Wide World of Sports" airer (ABC with 3 letters)
• Extra: Abbr. (ADDL with 4 letters)
• For an extra cost: Abbr. (ADDL with 4 letters)
• Reg. in Risk that gives a bonus of 3 extra armies (AFR with 3 letters)
• Wide-awake (e.g. ALERT with 5 letters)
• Wide awake (ALERT with 5 letters)
• Most wide-awake (ALERTEST with 8 letters)
• In a wide-awake manner (ALERTLY with 7 letters)
• Extra in "Broken Arrow," 1950 (APACHE with 6 letters)