Related Clues:
- Place to wash up
- Go into depth?
- Drop to the bottom
- Kitchen basin
- Fixture not to be confused with a toilet
- Invest, so to speak
- Be more dense than water, say
- Where dirty dishes pile up
- Lose altitude
- Luxury hotel amenity
- Fixture near a toilet
- Some let it all hang out
- Clothes for cleaning
- Make a putt
- Become clear, with "in"