Implement picked up in plunder (4)

I believe the answer is:

loot

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'plunder' is the definition.
(I know that plunder can be written as loot)

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for loot that I've seen before include "Booty; sack" , "Booty, spoils" , "Swag, booty" , "Stolen goods" , "Plunder and ransack" .)

I've seen this clue in The Irish News.

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