Depression that shows in your face (6)

I believe the answer is:

dimple

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'depression' is the definition.
(I know that dimple is a type of depression)

I don't understand the rest of the clue.

(Other definitions for dimple that I've seen before include "Fleshy dent" , "Facial depression" , "Small hollow in cheek or chin" , "Small depression (in skin)" , "Small depression in flesh" .)

I've seen this clue in The Globe and Mail.

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