Relay wide-ranging actors (9)
I believe the answer is:
broadcast
'relay' is the definition.
(thesaurus)
'wide-ranging actors' is the wordplay.
'wide-ranging' becomes 'broad' (I've seen this in another clue).
'actors' becomes 'cast' (group of actors).
'broad'+'cast'='BROADCAST'
(Other definitions for broadcast that I've seen before include "Sow" , "Transmit by radio or TV" , "Transmission" , "Send out by radio or television" , "distributed by hand" .)