After-bath garments (5)
I believe the answer is:
robes
'after-bath garments' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for robes that I've seen before include "Official vestments" , "Long loose flowing garments" , "Sober (anag)" , "'The 19 across 1 across' of the French Revolution" , "trappings of office?" .)