GAD Christmas Crossword 3.0

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Across
  1. 2. Christmas filling - wartime operation? (8)
  2. 4. Shimmery adornment (6)
  3. 6. Circular decoration (6)
  4. 7. Unrewarding stocking-filler (4)
Down
  1. 1. Downhill transport - violent implement (6)
  2. 3. 90 degrees North (5-4)
  3. 5. (Frosty) debating strategy (7)
  4. 7. Hidden inside a festive treat - to create a saying? (4)