Crossword clues for the word: SCLC The word SCLC has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for SCLC Showing 1 to 5 of 5 results Clue(s) Citizenship Schools org. Civil rights grp. once led by M.L.K. Civil rights org. formed after the Montgomery bus boycott Org. founded by Ralph Abernathy Rights org. led by M.L.K.