Turn performing in front of an audience in Wicked (4)
I believe the answer is:
evil
'wicked' is the definition.
(similar in meaning)
'turn performing' is the wordplay.
'turn' says the letters should be written backwards.
'performing' becomes 'live' (I've seen this in another clue).
'live' written backwards gives 'EVIL'.
'in front of an audience in' acts as a link.
This may not be right. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for evil that I've seen before include "heinous" , "Demonic" , "Live badly in depravity" , "mischief" , "Morally reprehensible" .)