Criticise Figaro as transparent part (5)

I believe the answer is:

roast

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

I cannot understand how the remainder of the clue works.

(Other definitions for roast that I've seen before include "Bake" , "Traditional Sunday lunch" , "Berate - cook" , "Traditional dinner" , "Cook (meat) in oven" .)

I've seen this clue in The Independent and The Sun.

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