Crossword Genius

Signalling system (9)

Ross

I believe the answer is:

semaphore

<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">signalling system</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>

(Other definitions for semaphore that I've seen before include "Way to signal" , "Strangely, home as per a system of communication" , "Signalling system using flags" , "Hears poem about arm signalling system" , "System of signalling with the arms" .)

I've seen this clue in The Times.
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