Crossword Genius

Secret language (4)

Ross

I believe the answer is:

code

'secret language' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for code that I've seen before include "Computer language, say" , "See 21 Across" , "System of words arrangement for secrecy" , "Established standards" , "Program instruction" .)

I've seen this clue in The Guardian, The Star Tribune, The Sun and the LA Times.
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