Traveller's TV advert? (10)
I believe the answer is:
commercial
This clue might be a double definition.
'traveller's tv' is the first definition.
The definition and answer can be both related to communication as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'advert?' is the second definition.
(I know that commercial is a type of advert)
Can you help me to learn more?
(Other definitions for commercial that I've seen before include "Television advert" , "Profitable" , "Advertisement" , "TV ad" , "It pushes" .)