Morse's Remorseless Puzzle

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Across
  1. 2. Its opposite is always better than itself. Lawn related. (4th, 5th)
  2. 5. Uncommon, or what a steak could be. (1st, 2nd)
  3. 6. Not on. (1st, 8th)
  4. 8. Balance, say, in a fair society. (6th, 3rd)
  5. 9. Key, or way out. (2nd, 10th)
Down
  1. 1. "You're worth nothing." (3rd, 7th)
  2. 3. Cover, muffle, or hold back. (1st, 4th)
  3. 4. Shunned by the unwise, a sharp protection. (3rd, 6th)
  4. 7. To burn badly, or the law of a free code. (2nd, 1st)
  5. 10. Time gone by. (3rd, 9th)