Snooker rods (4)
I believe the answer is:
cues
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">snooker rods</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for cues that I've seen before include "Snooker rods" , "Prompts for action" , "Signals for action" , "Actors' signals" , "Actor's signal" .)