Some advocate ether for their extraction? (5)

I believe the answer is:

draft

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'extraction?' is the definition.
(thesaurus)

I don't understand the remainder of the clue.

(Other definitions for draft that I've seen before include "A money order for US conscription" , "Outline or sketch" , "Sketch; money order" , "book's outline" , "Draw an outline" .)

I've seen this clue in The Telegraph.

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