Daily rag (7)
I believe the answer is:
cleaner
This clue might be a double definition.
'daily' is the first definition.
(dated term for a woman cleaner)
'rag' is the second definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
Can you help me to learn more?
(Other definitions for cleaner that I've seen before include "Less soiled" , "Char; detergent" , "More sanitary" , "Charwoman - vacuum" , "Dirt remover" .)