Message from the conductor
I believe the answer is:
cable
This clue is a double definition.
'message' is the first definition.
(cable is a kind of message)
'the conductor' is the second definition.
(cable is a kind of conductor)
'from' is the link.
(Other definitions for cable that I've seen before include "Satellite alternative?" , "Strong thick rope made of twisted hemp or steel wire" , "Telegram; wire rope" , "Strong line" , "Communication - wire - 200 yards in length" .)