Credit being due, showed pride (6)
I believe the answer is:
crowed
'showed pride' is the definition.
The definition and answer can be both to do with communicating as well as being past participle verbs.
Perhaps there's an association between them I don't understand?
'credit being due' is the wordplay.
'credit' becomes 'cr'.
'being due' becomes 'owed' (synonyms).
'cr'+'owed'='CROWED'
Can you help me to learn more?
(Other definitions for crowed that I've seen before include "Boasted" , "was triumphant" .)