1) Acronym for a big mess 2) Acronym for a colossal mess 3) Acronym for a major mess 4) Acronym since 1941 5) American comics magazine 6) An egregious error 7) Army glitch 8) Awful mess 9) Awful mistake 10) Awry 11) Awry, militarily speaking 12) Bad spot 13) Big botch-up 14) Big glitch 15) Big mess Found on https://www.crosswordclues.com/clue/snafu