Article in which end of conflict is reported? (5)

I believe the answer is:

piece

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'article' is the definition.
(article can mean a thing or item)

I cannot understand how the rest of the clue works.

(Other definitions for piece that I've seen before include "Castle, perhaps" , "that may follow show after work party?" , "Section; firearm" , "Bit; item" , "Morsel" .)

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