Canvases coated with a linseed extract (9)
I believe the answer is:
oilcloths
(Another definition for oilcloths that I've seen is " They keep out water".)
I've seen this clue in The Times and The Sunday Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free.
Check out my app
or
learn more
about the Crossword Genius project.