Possible Clues:

• Rib this nationality, badly
• Sounds as if there could have been sacks on this
• Is birth necessary for nationality? (7)
• As people under a monarchy, it' s an error maintaining resistance to it
• Enough to give the Irish TB (and perhaps give them the pip too)
• Like Manx
• Resistance, in part, is hard for people in these islands
• Like cottage pie or bangers and mash
• See 5
• "The Great __ Baking Show"