Related Clues:
- The loneliest number, in song
- Starting square
- Sea lettuce, for one
- Morsel for a sea snail
- Single thing
- Snack for a surgeonfish
- Two less than 38-Down
- It might be broken into quarters
- 'You're Still the ___' (1998 Grammy winner)
- Washington bill
- Opening number
- Lunch hour, maybe
- Only partner
- Aquarium dweller
- Beatles' compilation