ACROSS
1. JINX - "Arcane" character or why you might owe a soda
5. TUNER - Piano fixer
6. ULTRA - Extreme
7. NEEDY - Down-and-out
8. APRS - Car loan nos.
DOWN
1. JULEP - Traditional Kentucky Derby drink
2. INTER - "National" prefix
3. NERDS - Candy named for a high school clique
4. XRAY - Superhero's vision
5. TUNA - Oft-canned fish