Late jazz singer ___ Laine

CLEO

Not available

This clue is looking for the first name of Cleo Laine, a well-known British jazz singer who rose to fame in the mid-20th century. The blank in "___ Laine" directly hints at her first name, and since she was active later in the jazz era (especially in the 1950s–1970s), "late" helps confirm it’s her. The answer is simply her first name, "CLEO," which fits neatly into the space.