Tap disc – user of tap! (6)
I believe the answer is:
washer
(Other definitions for washer that I've seen before include "Laundress" , "Tap seal" , "Flat metal ring; cleanser" , "Plumbing seal" , "Rendered sightless" .)
I believe the answer is:
washer
(Other definitions for washer that I've seen before include "Laundress" , "Tap seal" , "Flat metal ring; cleanser" , "Plumbing seal" , "Rendered sightless" .)