Timely tool (6)

I believe the answer is:

scythe

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'tool' is the definition.
(scythe is a kind of tool)

I don't understand the remainder of the clue.

(Other definitions for scythe that I've seen before include "Crop-cutting blade" , "Mowing blade" , "Long-handled tool for cutting grass or grain" , "Cut down manually" , "Implement for cutting long grass" .)

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

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