Kt birthday

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Across
  1. 4. Teacher in the mix, found rotating Saint.
  2. 6. Mum’s Old name lives in a crowd without a…?7,5
  3. 8. Roman battery shows it’s age (5,3)
  4. 9. The formal vernacular of the area embraces old school. (7)
  5. 10. birthplace is a tipped up manger with a question (7)
  6. 12. Son had ambitions internalised (4)
  7. 13. Apostle fails to shine cutting with an axe (7)
  8. 14. Dad went frolicking on westward ho (6,4)
  9. 16. dancing corrupters in childhood home (7,5)
  10. 17. Crossword setter’s relative English in a French coastal city
  11. 18. reused panel was temporary home (5)
Down
  1. 1. French attic wants a cuppa (7)
  2. 2. Place where a magic stick shows its value (10)
  3. 3. The captain kept one eye on the machine stamp (5)
  4. 5. mixes long evil plus irregular lockers of college. (7.3.5)
  5. 7. VIP (he thinks) initially simply tried every vineyard enthusiastically (5
  6. 9. sometimes sanguine or has a small sheep (4)
  7. 11. maiden hidden away (4)
  8. 15. Daughter or father, not eye but echo