Here are the possible solutions for all that jazz man clue
Answer
Clue
Relevancy
fosse
Clue
Man behind "All That Jazz"
"All That Jazz" man
Definition
a ditch or moat, also FOSS
kennyg
Clue
"For his contributions to jazz, ___ should be smeared with bacon grease, placed in a cage with three underfed Kodiak grizzly bears, and whatever happens, happens." ("Genius Guide to Jazz")
teams
Clue
Jazz and Blues, but not smooth jazz or jump blues, AFAIK
gabor
Clue
Socialite who wrote "How to Catch a Man, How to Keep a Man, How to Get Rid of a Man"