Ash found on the beach? (9)
I believe the answer is:
driftwood
'ash' is the definition.
The definition and answer can be both substances as well as being singular nouns.
Maybe they are linked in a way I don't understand?
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for driftwood that I've seen before include "box, perhaps left by water" , "Washed up pieces of tree" , "What beachcomber found" , "items washed up?" , "Timber, etc, on the sea" .)