Fragmented result of cutting through a wood (7)

I believe the answer is:

sawdust

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'wood' is the definition.
(I know that sawdust is a type of wood)

I don't understand the rest of the clue.

(Other definitions for sawdust that I've seen before include "result of use of blade" , "Fine particles from cut wood" , "Carpenters' output" , "Shavings on the floor" , "remains in the workshop" .)

I've seen this clue in The Globe and Mail.

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