Set to send fewer telegrams? (8)
I believe the answer is:
wireless
This might be a double definition.
'set' is the first definition.
(I know that wireless is a type of radio receiver)
'send fewer telegrams?' is the second definition.
'wireless' can be an answer for 'send' (thesaurus). I am unsure of the 'fewer telegrams?' bit.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for wireless that I've seen before include "Receiver" , "Radio (dated)" , "Set" , "Early name for radio" , "Old name for radio - lacks something" .)