Crossword clues for the word: SMALTO The word SMALTO has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for SMALTO Showing 1 to 5 of 5 results Clue(s) Colored glass for mosaic work. Colored glass piece Colored glass used in mosaic Colored glass. Mosaic glass.