Ring pub, finding obstruction on the way (7)

I believe the answer is:

tollbar

'obstruction on the way' is the definition.
(a tollbar obstructs a road)

'ring pub' is the wordplay.
'ring' becomes 'toll' (a bell tolls).
'pub' becomes 'bar' (both are drinking establishments).
'toll'+'bar'='TOLLBAR'

'finding' acts as a link.

I've seen this clue in The Times.

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