Related Clues:
- Capacity-exceeding letters
- Sign about a space shortage, briefly
- Sign of a sellout show
- Sign indicating a sold-out performance
- Ex halved
- Boffo abbr
- Welcome sign for a B'way angel
- 'No seating' letters on Broadway
- Letter for a gaggle
- Packed letters?
- Low-rent NYC building
- "Take Good Care of My Baby" singer Bobby
- Sign of an overflow
- Compound in CRT glass
- Indicator of a full house