Shy actors (4)
I believe the answer is:
cast
I believe this clue is a double definition.
'shy' is the first definition.
(both can mean to throw)
'actors' is the second definition.
(group of actors)
(Other definitions for cast that I've seen before include "Squint to see" , "Play's actors" , "Throw out line for fish" , "Pot" , "Group of actors in a play" .)