Large order to kill ugly ogre in storeroom (6)

I believe the answer is:

larder

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'storeroom' is the definition.
(larder is a kind of storeroom)

I can't explain the rest of the clue.

(Other definitions for larder that I've seen before include "Buttery" , "Place where food is kept" , "Small room for storing food" , "Person applying grease" , "Cool store" .)

I've seen this clue in The Hindu.

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