Crossword Genius

Good hand for button pushed in the palace (5,5)

Ross

I believe the answer is:

royal flush

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'good hand' is the definition.
(I've seen this before)

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for royal flush that I've seen before include "sequence" , "making monarch look embarrassed?" , "good deal?" , "Excellent hand" , "Great hand" .)

I've seen this clue in the Sydney Morning Herald.
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