Crossword puzzle clue "first thought of"

"Ev'n thought meets thought, ___ from the lips it part" (Pope)

First thought of

First part of an entertaining thought

Hybrid citrus that's hidden in Marconi's first name (and you thought we'd run out of ways to clue this)

First word across in the first-ever crossword (1913) and the first of a dozen appearances of the word in this puzzle's grid, written word search-style (left, right, down, and diagonally) ... Can you f

Thought of as literally the worst thing in the world