Jazz on electronic record label (9)
I believe the answer is:
trademark
'label' is the definition.
(thesaurus)
'jazz on electronic record' is the wordplay.
'jazz' becomes 'trad' (trad jazz is a type of jazz).
'on' means one lot of letters go next to another.
'electronic' becomes 'e' (as in e-mail or e-books).
'record' becomes 'mark' (marking is a kind of recording).
'trad'+'e'+'mark'='TRADEMARK'
(Other definitions for trademark that I've seen before include "Distinctive sign" , "Registered company symbol" , "distinctive characteristic" , "Company's unique symbol" , "Distinguishing feature" .)