Crossword puzzle clue "it happens four times a year and also in this puzzle's circles"

It happens four times a year ... and also in this puzzle's circles

Ironic change in destiny ... and, literally, what happens in this puzzle's circles

Cause "total protonic reversal," according to "Ghostbusters"...or what happens literally four times in this puzzle

"For his contributions to jazz, ___ should be smeared with bacon grease, placed in a cage with three underfed Kodiak grizzly bears, and whatever happens, happens." ("Genius Guide to Jazz")

"Whatever happens, happens"

It may straddle neighboring countries ... and, in a different way, what each of four sets of puzzle circles graphically depicts

Classic comics catchphrase ... and a hint to four sets of puzzle circles

What's clued in parentheses for each of four answers, and found in corresponding sets of puzzle circles