Adolescent rock star Bruce jumps off stage — one way to go! (7)
I believe the answer is:
'adolescent' is the definition.
(I've seen this before)
'off stage one way to go' is the wordplay.
'off' becomes 'teen' (I am not sure about this - if you are sure you should believe this answer much more).
'one way' becomes 'st' (abbreviation for street).
'to go' suggests deleting specific letters.
'stage' with 'st' removed is 'age'.
'rock star bruce jumps' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for teenage that I've seen before include "Like a category of youngsters" , "Adolescent" , "Relatively young" , "Juvenile" , "Thirteen to nineteen" .)