Clean off light coat of paint (4)
I believe the answer is:
wash
I believe this clue is a quadruple definition!!
'clean off' is the first definition.
(I've seen this in another clue)
'light' is the second definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'coat' is the third definition.
(wash is a kind of coat)
'of' is a link.
'paint' is the fourth definition.
(wash is a kind of paint)
Can you help me to learn more?
(Other definitions for wash that I've seen before include "wake" , "Clean with soap" , "Perform ablutions" , "bath" , "Laundry" .)