revealer

plural revealers

1. A person or thing that reveals.

   Whether "The Doctor" be written by Southey or not, let revealers of mysteries determine; it is certainly written by one who strongly resembles him, perhaps too strongly to be other than himself.

   1838, T.B. Browne, Thoughts of the Times; or, Men and things, London: Longman, Orme, Brown, Green and Longmans, page 108

   Synonyms: revelator · Antonyms: concealer

2. crosswordingAn entry in a crossword that guides the solver towards the theme or endgame.

   Though experienced solvers will likely see where this is going , others might need the help of the revealer

   2023 November 14, David Bukszpan, Crosswordese: The Weird and Wonderful Language of Crossword Puzzles, Chronicle Books, →ISBN, page 17

   2 more examples

   Next (and my favorite) is Blank Space , four corner rebus squares reading "blank" for the down answers and "space" for the acrosses, mirroring the central revealers

   2023 October 15, Stu Ockman, Will and Me: Confessions of a Crossword Junkie, Archway Publishing, →ISBN, page 78

   The theme launches off a main revealer entry at 93-Across. There are four clues that refer to that entry, at 39-, 65-, 104- and 108-Across. When solved, 93-Across will also make the grid art snap into focus.

   2024 November 16, Caitlin Lovinger, “Nothing but Blue Skies”, in New York Times