Crossword clues for the word: CSO The word CSO has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for CSO Showing 1 to 7 of 7 results Clue(s) "G. Solti's Windy City employer, 1969-91" "Georg Solti's Windy City employer, 1969-91: abbr." "Internet Phone Directory server, abbrev." High-ranking army man: Abbr. Initials of a staff member. Sir Georg Solti's gp. Staff officer: Abbr.