Act over chap pinching Kylie's first music producer (7)

'music producer' is the definition.
I know nothing about this answer so I can't judge whether this works.

'act over chap pinching kylie's first' is the wordplay.
'act' becomes 'law' (law is a kind of act).
'over' is a reversal indicator.
'chap' becomes 'man' (chap can mean a man).
'pinching' indicates putting letters inside (taking inside).
'first' suggests taking the first letters.
The initial letter of 'kylie' is 'k'.
'law' in reverse letter order is 'wal'.
'wal'+'man'='walman'
'walman' enclosing 'k' is 'WALKMAN'.

Can you help me to learn more?