Possible Clues:

• Where Marat was murdered
• Vessel in which one washes oneself
• An English city, however topsy-turvy, offers grime-removing facility
• Place to wash (US)
• Vessel that's burst into something that might burst, not half!
• Place for soaking
• Two cleaning vessels put together to make third one
• Film made by soap in this city bar recalled
• Washroom fixture
• Archimedes' reputedly was here before his 'Eureka'