Crossword puzzle clue "how the across answers appear in the bottom half of this puzzle"

How the Across answers appear in the bottom half of this puzzle

How the Across answers appear in the top half of this puzzle vis-à-vis the bottom

Very distant or different (and a hint to what's hidden among the Across answers, in their logical order, from top to bottom)

What 15 answers in this puzzle appear on

"Home work" letters that appear at both ends of this puzzle's theme answers

Letter appearing only in down answers; its opposite appears only in across answers

1960s TV icon whose name follows a pair of letters found, appropriately, 16 times in this puzzle's Across answers

Illegal concealment ... and a hint to ten Across answers in this puzzle