A compound word for a vehicle in a sci-fi movie. Keep in mind: The first word may be at the bottom.
Reveal top + bottom answer and reasoning
Answer: STAR SHIP
Top half: STAR - STAR is the first half of "star ship", the top + bottom answer for the shared final clue: "A compound word for a vehicle in a sci-fi movie. Keep in mind: The first word may be at the bottom".
Bottom half: SHIP - SHIP completes "star ship", so the top and bottom rows answer the shared final clue together.