Large box of personal essentials (5)

I believe the answer is:

chest

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

I cannot understand how the rest of the clue works.

(Other definitions for chest that I've seen before include "Part of body; storage box" , "Box - breast" , "Rib area" , "Large box used for storage" , "Box or trunk" .)

I've seen this clue in the Evening Standard.

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