One digging out old wooden plate (8)

I believe the answer is:

trencher

I believe this is a double definition.

'one digging out' is the first definition.
(I know that trenchers dig out)

'old wooden plate' is the second definition.
(old-fashioned type of plate)

(Other definitions for trencher that I've seen before include "Board" , "Plate" , "bearer of food" , "field worker" , "(Old) wooden platter for food" .)

I've seen this clue in The Times.

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