Toilet water (3,2,7)
I believe the answer is:
eau de cologne
'toilet water' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for eau de cologne that I've seen before include "Perfumed toilet water" , "Scent" , "Perfumed liquid" , "EU-cleaned goo (anag)" , "Perfumed mixture of alcohol and essential oils" .)