Peron); CANDIDE (44A *Student of Dr. Pangloss); AIDA (*Lover of Radames); FAME (*Renown); CAROUSEL (67A *Site of much horsing around?); SHOWBOAT (69A *Perform ostentatiously); and KISMET (70A *Destiny). Also chiming in to the tune of show business are Cole Porter's "Well Did You EVAH ?" (57A); CHI (39A The Bears on