EME (53A. Suffix in linguistics); EPI (11D. Prefix with cycle); GRE (29A. Princeton Review subj.); HAIM (26A. One of the Coreys on “The Two Coreys”); HEL (32D. Daughter of Loki); LANG (23A. “The King and I” film director); LPS (50A. Records that may be broken); OLE (57D. Root word?); POEMS (47A.