Possible Clues:

• Something religious left outside tavern in US, for instance
• Bar shut by priest in Catholic Venice once, say
• See 17
• Local resident in antique country
• See 20 Across
• Writing terrible lie about bar could lead to what we have on this island
• Local wearing something revered in Ireland, say
• Country inn, outside which is an historical object
• Political system of government by the people