Crossword puzzle clue "back four ways"

"Back" four ways

Collection consisting of four plates, four saucers, four bowls, etc.

Swing both ways, and a literal hint to how four puzzle answers were created

Four ways to get around

"Push 'em back! Push 'em back! Way back!"?

Instrument often used in a flashback...back...back...back... *camera pans up everything goes blurry

Back-to-back-to-back championships

Back ways