Quarrel noisily in Baden-Baden? (3)
I believe the answer is:
spa
'quarrel noisily in baden-baden?' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe there's a link between them I don't understand?
This is the entire clue.
(Other definitions for spa that I've seen before include "Health and beauty treatment establishment" , "Health resort near a spring" , "Water-cure town" , "Heated bath" , "Resort with mineral water spring" .)