Gave voice when I damaged a tendon (7)
I believe the answer is:
intoned
'gave voice' is the definition.
The answer and definition can be both to do with communicating as well as being past participle verbs.
Perhaps you can see a link between them that I can't see?
'i damaged a tendon' is the wordplay.
'damaged' indicates an anagram.
'tendon' is an anagram of 'ntoned'.
'i'+'ntoned'='INTONED'
'when' is the link.
Can you help me to learn more?
(Other definitions for intoned that I've seen before include "it's said, in a monotonous way" , "Sang in church" , "Chanted" , "Said flatly" , "sounded like the vicar?" .)