Secret shuffle in silent dance (11)

I believe the answer is:

clandestine

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'secret' is the definition.
(synonyms)

'shuffle in silent dance' is the wordplay.
'silent dance' can be anagrammed to 'CLANDESTINE'.
Though, I'm not clear how the anagram is indicated.

Can you help me to learn more?

(Other definitions for clandestine that I've seen before include "Undercover" , "Surreptitious" , "through the backdoor" , "Secret" , "Done secretively" .)

I've seen this clue in The Globe and Mail.

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