Masseur's workplace (3)
I believe the answer is:
spa
'masseur's workplace' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for spa that I've seen before include "Cheltenham or Bath?" , "eg Vichy" , "A curative mineral spring, or place with one" , "health centre" , "Watering hole" .)