Crossword clues for Start of a theory 4 lettersAnswerClueIDEATheory's startIDEAStart of a theoryHOLDSWATERWhat a plausible theory does (and what the start of each of 17-, 28- and 43-Across does)BIGBANGTheory of the universe, or a hint to the starts of 17-Across and 7-, 10-, 35- and 40-Down
