Roomy sort of suit? (5)
I believe the answer is:
space
This clue could be a double definition.
'roomy sort' is the first definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'suit?' is the second definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'of' is the link.
Can you help me to learn more?
(Other definitions for space that I've seen before include "Empty area, may be outer" , "Gap; --- Oddity (Bowie)" , "Room for capes" , "Expanse" , "Cosmos" .)