A tame denial (4)

I believe the answer is:

wild

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'a tame denial' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.

This is the entire clue.

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(Other definitions for wild that I've seen before include "Feral - crazy" , "Born Free?" , "Feral, untamed" , "Unrestrained" , "Tempestuous" .)

I've seen this clue in the Evening Standard.

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