Cried on hearing lovely poem (8)
I believe the answer is:
bellowed
'cried on hearing lovely poem' 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?
This is the entire clue.
Can you help me to learn more?
(Other definitions for bellowed that I've seen before include "Roared" , "made loud noise" .)