Read about a bit of bravado (4)
I believe the answer is:
dare
'a bit of bravado' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe there's an association between them I don't understand?
'read about' is the wordplay.
'about' indicates an anagram.
'read' anagrammed gives 'DARE'.
Can you help me to learn more?
(Other definitions for dare that I've seen before include "Risk; challenge" , "Challenge of courage" , "Have the courage to try something" , "Be courageous enough to try or do" , "Take the risk, face the danger" .)