Crossword clues for N.C.A.A. part: Abbr. 3 letters:ATHN.C.A.A. part: Abbr.ASSOCN.C.A.A. part: Abbr.ASSOCN.A.A.C.P. or N.C.A.A. part: Abbr.CONFPart of the N.C.A.A.'s purview: Abbr.