They're not to be missed (4)
I believe the answer is:
cues
(Other definitions for cues that I've seen before include "Actors' signals" , "Signals for action" , "Actor's signal" , "Snooker rods" , "Snooker ball strikers" .)
I believe the answer is:
cues
(Other definitions for cues that I've seen before include "Actors' signals" , "Signals for action" , "Actor's signal" , "Snooker rods" , "Snooker ball strikers" .)