Canoe extracted by archaeologist? (6)

I believe the answer is:

dugout

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

I can't explain the rest of the clue.

(Other definitions for dugout that I've seen before include "Simple craft" , "Trench shelter - canoe made from log" , "Soldier's trench" , "Type of canoe" , "Simple canoe" .)

I've seen this clue in The Times.

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