Writer’s last to be moved by acidic reviewer (6)

I believe the answer is:

critic

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'reviewer' is the definition.
(I've seen this in another clue)

I don't understand the remainder of the clue.

(Other definitions for critic that I've seen before include "Writer of reviews" , "Commentator, pundit" , "I might rebuke" , "Professional reviewer of literature, art, drama or music" , "Professional judge" .)

I've seen this clue in The Times.

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