Devolution in the UK

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Across
  1. 4. name of the convention about nations' consent
  2. 7. if devolution is not an event, then it is this
  3. 10. name of the formula used for budget calculations
  4. 11. where devolution was initiated
  5. 13. prime political architect of devolution
  6. 14. nature of devolution over the UK
  7. 15. colour of the political water separating the Welsh and the English
Down
  1. 1. building designed by a Spaniard, used by Scots
  2. 2. inseparable from this process in Northern Ireland
  3. 3. Northern Irish executive, by metonymy
  4. 5. how devolution was agreed upon
  5. 6. the powers transfered from the EU to the UK
  6. 8. first english city to experience devolution
  7. 9. the powers Westminster retains
  8. 12. close but different political model