Not given a roasting, but unreasonably fired (5)

I believe the answer is:

fried

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'fired' is the definition.
(thesaurus)

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

(Other definitions for fried that I've seen before include "Cooked on a hot surface" , "Sauteed" , "Cooked in oil/fat" , "Such as cooking chips" , "Cooked in oil" .)

I've seen this clue in the Evening Standard.

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