Crossword Genius

Set-up of popular stop with everyone inside (12)

Ross

I believe the answer is:

installation

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

'set-up' is the definition.
Both the answer and definition are singular nouns.
Perhaps there's an association between them I don't understand?

'popular stop with everyone inside' is the wordplay.
'popular' becomes 'in' ('in' can mean trendy).
'stop with' becomes 'station' (eg a stop on a train journey. I am not sure about the 'with' bit.).
'everyone' becomes 'all' (all people).
'inside' is an insertion indicator.
'station' enclosing 'all' is 'stallation'.
'in'+'stallation'='INSTALLATION'

'of' acts as a link.

Can you help me to learn more?

(Other definitions for installation that I've seen before include "Apparatus positioned" , "Large gallery artwork" , "Art exhibit in gallery" , "Exhibit constructed in a gallery" , "Positioning" .)

I've seen this clue in The Telegraph.
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