Dani's crossword extravaganza

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Across
  1. 3. - Over‑the‑top Secret Santa; also cracking shells (10)
  2. 5. - Policy whiz tackling inequality, try our dog scrambled (10)
  3. 6. - External colleague leading a coup, finally in exile (5)
  4. 8. – Romantic lead: fiery heart, oddly rearranged (6)
  5. 10. – Witch left half a baffling arrangement (7)
  6. 12. – Sweetener cut short in guidelines (5)
Down
  1. 1. - Government assembly, pair laments (10)
  2. 2. – Vital organ, central to the cause (5)
  3. 4. - LABELING – Marking products, able linguist oddly reshaped (9)
  4. 7. - Minister shaping NHS reforms, found walking down the road (9)
  5. 9. - Boss among few men, noisy on a bike (7)
  6. 11. - Vital sign from beans, oddly (5)