Energetic character and yours truly on stage? (4,4)
I believe the answer is:
live wire
'energetic character' is the definition.
'yours truly on stage?' is the wordplay.
I cannot quite understand how this works, but
'on' could be 're' ('on' can be mean 'with reference to') and 're' is present in the answer.
'yours truly' could be 'i' and 'i' is present in the answer.
This may be the basis of clue (or it may be nonsense).
'and' acts as a link.
(Other definitions for live wire that I've seen before include "Very sparky person" , "A person with intense energy" , "Energetic and unpredictable person" , "Life and soul of party" , "'One is very energetic, almost electric (4,4)'" .)