Odds you might be given about English workers being framed? (3,2)

I believe the answer is:

set up

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'framed?' is the definition.
Both the answer and definition are adjectives. Maybe they are linked in a way I don't understand?

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for set up that I've seen before include "An arrangement designed to trap or cheat" , "Erect; fix" , "Fool" , "Assemble - design - establish" , "Arrangement; trick" .)

I've seen this clue in The Times.

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