revealer noun2 •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 •An entry in a crossword that guides the solver towards the theme or endgame.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 formsrevealers