Gets a total shaping tool (4)

I believe the answer is:

adze

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'shaping tool' is the definition.
(I've seen this before)

I cannot understand how the remainder of the clue works.

(Other definitions for adze that I've seen before include "Daze with a sort of axe" , "Edging tool" , "Carpenter's tool sounds mathematical" , "One used to cut" , "Carpenter's shaping tool" .)

I've seen this clue in the Sydney Morning Herald.

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