Feverishly excited, sent telegram? (5)
I believe the answer is:
wired
'feverishly excited' is the definition.
Although both the answer and definition are past participle verbs, I cannot see how they can define each other.
'sent telegram?' is the wordplay.
I cannot quite understand how this works, but
'telegram?' could be 'wire' ('wire' can be a synonym of 'telegram') and 'wire' is found within the answer.
A single letter 'd' remains which might be clued in a way I don't understand.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for wired that I've seen before include "Equipped for electricity" , "having Internet connection" , "Equipped for electrical connection" , "Bugged" , "Nervous" .)