With scorn said “Involved in a racket” (7)
I believe the answer is:
disdain
'with scorn' is the definition.
'disdain' can be an answer for 'scorn' ('disdain' can be a synonym of 'scorn'). I'm unsure of the 'with' bit.
'said involved in a racket' is the wordplay.
'involved' indicates anagramming the letters (involved can mean confusing or complex).
'in' indicates putting letters inside.
'a racket' becomes 'din' (I've seen this before).
'said' is an anagram of 'isda'.
'isda' going inside 'din' is 'DISDAIN'.
Can you help me to learn more?
(Other definitions for disdain that I've seen before include "Scorn - feeling of superiority" , "Show scorn" , "Haughtiness" , "'Contempt, condescension (7)'" , "Look down on" .)