City dismisses marketing fever (4)

I believe the answer is:

ague

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

I cannot understand how the rest of the clue works.

(Other definitions for ague that I've seen before include "Fit of the shakes" , "met with cheek in Twelfth Night" , "Fever with shivers" , "Malarial fever or fit of shivering" , "Feverish fit" .)

I've seen this clue in The Independent.

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