In great demand as poker might be (3,3)

I believe the answer is:

red hot

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

I can't explain the rest of the clue.

(Other definitions for red hot that I've seen before include "Sizzling" , "highly emotional" , "Strongly fancied to win" , "sort of poker" , "Burning" .)

I've seen this clue in The Sun.

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