Jazzman Getz (4)
I believe the answer is:
stan
'jazzman getz' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for stan that I've seen before include "Laurel and Hardy, . . . . and Ollie" , "- Laurel, comedian" , "Laurel perhaps" , "guy" , "Ollie's partner" .)