Side of stage for audience worth a full renovation (6,4)

I believe the answer is:

fourth wall

I'm a little stuck... Click here to teach me more about this clue!

'side of stage for audience' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'worth a full renovation' is the wordplay.
'renovation' is an anagram indicator.
'worth'+'a'+'full'='worthafull'
'worthafull' with letters rearranged gives 'FOURTH WALL'.

Can you help me to learn more?

I've seen this clue in The Independent.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.