Uninfected transmitter on a war ship (7)
I believe the answer is:
carrier
This clue could be a double definition.
'uninfected transmitter' is the first definition.
'carrier' can be an answer for 'transmitter' (I've seen this before). I am unsure of the 'uninfected' bit.
'war ship' is the second definition.
(I know that carrier is a type of war ship)
'on a' acts as a link.
Can you help me to learn more?
(Other definitions for carrier that I've seen before include "Person or company that transports goods" , "One who transmits, maybe without being affected" , "Transport company" , "naval vessel" , "Transporter or transmitter of disease" .)