Crossword clues for the word: HORSESMOUTH The word HORSESMOUTH has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for HORSESMOUTH Showing 1 to 6 of 6 results Clue(s) Authoritative source, in a saying Original source of info Reliable source Supposedly reliable source of info Voice of authority Whence tips come to a D.V.M.?