She was exposed as an opponent of oppressive taxes (6)

I believe the answer is:

godiva

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'she' is the definition.

I cannot understand how the remainder of the clue works.

(Other definitions for godiva that I've seen before include "Lady who rode bare in Coventry" , "Legendary lady who rode naked through Coventry" , "legendary rider" , "bareback rider" , "who rode bareback?" .)

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

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