The final piece?

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Across
  1. 3. Lo! The jumble where you would rest for the night after golf?
  2. 5. Who would Nicole fight for the keys?
  3. 6. Otherwise known as Master Montague.
  4. 8. Is this fish truly red?
Down
  1. 1. The final frontier
  2. 2. How you catch a wild goose
  3. 4. The latter part of Wol's endless utterance
  4. 6. It isn't Beta, but I heard it comes after Alpha?
  5. 7. How many times was I tied to machines that make me be?