Paulo's Cryptic Christmas Crossword

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Across
  1. 2. Crosswords end in sharp weapon (5)
  2. 4. Leader seeks and gains enlightenment (4)
  3. 5. Down on luck, don't reinvent, no introduction (4)
  4. 6. A backwards coma, running in disarray (4)
  5. 7. Smart Heretics dancing around (13)
Down
  1. 1. Fireball, breaks the night(6)
  2. 2. Wall supporting imperfect surfaces (8)
  3. 3. Sustenance, regarding fresh mint (11)