Crossword clues for 17-Down's org. 3 lettersAnswerClueNHL17-Down's org.TEDOrg. whose letters' first occurrences become progressively farther apart in 17-, 27-, 42- and 57-AcrossNBAOrg. whose only members with nonplural names appear at the ends of 17-, 25-, 41- and 56-AcrossNASASpace org. that's literally lost in 17-, 30-, 39-, 46-, and 60-AcrossUSPSOrg. suggested by the starts of 17-, 31-, 41- and 62-Across