Complaint said to be a bit hackneyed (4)

I believe the answer is:

acne

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'complaint' is the definition.
(acne is a kind of disease)

I cannot understand how the rest of the clue works.

(Other definitions for acne that I've seen before include "Face problems" , "(Inflammation causing) spots" , "Teenage skin blemish" , "Teenage spots" , "Spotty skin condition" .)

I've seen this clue in the Evening Standard.

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