Jazz composer Garner

ERROLL

This pianist and composer was known for his distinctive left-hand bass patterns and wrote the jazz standard "Misty."

This clue refers to Erroll Garner, a legendary jazz pianist and composer known for his distinctive swing style and iconic piece "Misty." The first name "Erroll" fits the answer length, and since "Garner" is his last name, the clue directly points to him without wordplay. If you're familiar with jazz history, his name stands out immediately as a key figure in the genre.