Pembroke Cryptic Crossword

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Across
  1. 4. Manger minimum mess? (6)
  2. 6. Doctor has most of salad plant lacking carbon, after exercise in Welsh town (8)
  3. 10. Lord Chris Smith loves big pole on ship with Queen Elizabeth (6)
  4. 12. Group in Pembroke or politician with mad energies (10)
  5. 14. Drunk doctor in University Library. Or exclusive Pembroke accomodation? (3,5)
  6. 15. Bravely swapping daughter for bishop on finding newest court (5)
  7. 16. Possibly spherical affair? (3,4)
  8. 19. About to return to shed clothing in accommodation (9)
Down
  1. 1. Gamebirds cooked for festive holiday (9)
  2. 2. Strip, ostensibly to hide for examination (6)
  3. 3. Calmer without, we find Matthew say (6)
  4. 5. Some Egyptian small kitchen (3)
  5. 7. Conrad always munches starters on river (3)
  6. 8. Bird orders alert in mountain (7)
  7. 9. Pembroke student Ian replaces electron in outermost atomic shell (9)
  8. 11. Hiddleston’s Cat (3)
  9. 12. I’m with a common folk in not excellent place of study (4)
  10. 13. Half a young kangaroo has Apple for politician alumnus (2,3)
  11. 17. Disco-like hit (3)
  12. 18. Heard to have rested in second term (4)