Club employee, a lively, energetic individual! (7)
I believe the answer is:
bouncer
This clue might be a double definition.
'club employee' is the first definition.
(night club security guard)
'a lively energetic individual' is the second definition.
'bouncer' can be an answer for 'individual' (bouncer is a kind of individual). I am not certain of the 'a lively energetic' bit.
Can you help me to learn more?
(Other definitions for bouncer that I've seen before include "Club doorkeeper" , "He guards the entrance to nightclubs" , "Club doorman" , "trampolinist?" , "Club employee" .)