Suds maker (4)
I believe the answer is:
soap
'suds maker' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for soap that I've seen before include "Coronation Street?" , ". . . . opera, sentimentalised radio or tv series" , "Serialised drama" , "Carbolic, perhaps" , "TV entertainment" .)