European getting rid of good or bad smell (4)

I believe the answer is:

reek

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

I cannot understand how the remainder of the clue works.

(Other definitions for reek that I've seen before include "Strong smell" , "Fume" , "Smell to high heaven" , "Pong" , "smoke in Balmoral" .)

I've seen this clue in The Times.

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