Crossword clues for the word: SPRUE The word SPRUE has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for SPRUE Showing 1 to 5 of 5 results Clue(s) Metal left over after casting Mold part Opening for pouring molten metal in foundaries. Opening to a mold Waste piece from metal casting