Sat Tel GK 24d: Sauce to accompany fettuccine pasta, made with Parmigiano Reggiano cheese, cream & garlic. Could it be FLORIDA?
54a: Swedish physiologist, etc (lengthy clue). E?L?R. EULER? But thought he was of a different discipline.
Sun Tel GK 23a: Draped skirtlike garment worn by Polynesians L?V?-L?V?.