Rang the bell when urged to (7)
I believe the answer is:
pressed
'rang' is the definition.
The definition and answer can be both to do with communicating as well as being past participle verbs.
Perhaps you can see an association between them that I don't see?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for pressed that I've seen before include "Squeezed hard" , "Forced" , "Coerced" , "Urged U crushed" , "crushed juice" .)