Invective about British writings (5)
I believe the answer is:
bible
'invective' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'about british writings' is the wordplay.
'about' is an insertion indicator.
'british' becomes 'b' (abbreviation e.g. in 'BBC').
'writings' becomes 'bile' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'b' placed into 'bile' is 'BIBLE'.
Can you help me to learn more?
(Other definitions for bible that I've seen before include "Authoritative book" , "Book regarded as the ultimate authority on its subject" , "An authoritative text" , "The Christian or Jewish scriptures" , "reliable work" .)