Possibly one-eyed supporters? (5)

I believe the answer is:

jacks

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'possibly one-eyed supporters?' is the definition.
Although both the answer and definition are plural nouns, I can't see how one could define the other.

This is the entire clue.

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(Other definitions for jacks that I've seen before include "Small bowls" , "salts" .)

I've seen this clue in the Evening Standard.

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