Barrier at site entrance: parking, indeed with everyone (7)

I believe the answer is:

paywall

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'barrier at site entrance' is the definition.
I know nothing about this answer so I can't judge whether this works.

'parking indeed with everyone' is the wordplay.
'parking' becomes 'p' (abbreviation on road signs).
'indeed' becomes 'ay' ('ay' and 'aye' can mean yes).
'with' becomes 'w' (abbreviation).
'everyone' becomes 'all' (all people).
'p'+'ay'+'w'+'all'='PAYWALL'

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I've seen this clue in The Times.

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