State lead over posh bar out of town (7,3)

I believe the answer is:

country pub

'bar out of town' is the definition.
(pub in the country)

'state lead over posh' is the wordplay.
'state' becomes 'country' (synonyms).
'lead' becomes 'Pb' (Pb is the chemical symbol for lead).
'over' is an insertion indicator.
'posh' becomes 'u' (abbreviation for upper-class - opposite to non-U).
'pb' enclosing 'u' is 'pub'.
'country'+'pub'='COUNTRY PUB'

I've seen this clue in The Guardian.

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