Football pundit gets one woolgathering (7)

I believe the answer is:

shearer

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'football pundit' is the definition.
(football pundit Alan Shearer)

I don't understand how the rest of the clue works.

(Other definitions for shearer that I've seen before include "One that's fleeced" , "Wool cutter - ex-England footballer" , "Man clipping sheep" , "He cuts the fleece from sheep" , "Sheep's wool cutter" .)

I've seen this clue in The Guardian.

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