Natale Enigmistica 2

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Across
  1. 4. Cooked mutton and AI? That's a change!
  2. 5. A bit of grenade was intended, I hear
Down
  1. 1. Underwriting recurring payment
  2. 2. Gun first pitted against, swapped for sulphur
  3. 3. Ask what spanish would be with cereal but no electronics