Crossword Genius

Signalling code (5)

Ross

I believe the answer is:

morse

'signalling code' is the definition.
(Morse code)

This is all the clue.

(Other definitions for morse that I've seen before include "& 24 Across Encrypted language" , "used to transmit messages" , "TV inspector" , "Code inventor, Samuel" , "Dot-dash code inventor" .)

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