Crossword clues for What 56 Down means 3 lettersAnswerClueTENWhat 56 Down meansOMNIPrefix meaning 56-AcrossPULLOUTWith 56-Across, use every available means (and instructions regarding 17-Across and 11- and 27-Down)STARDAYRoughly 23 hours, 56 minutes, 4.1 seconds of mean time