In Paris, it’s wrapping bad back for player (7)
I believe the answer is:
cellist
'player' is the definition.
(cellist is a kind of player)
'in paris it's wrapping bad back' is the wordplay.
'in paris' becomes 'cest' (I can't justify this - if you can you should believe this answer much more).
'it's wrapping' is an insertion indicator.
'bad' becomes 'ill' (similar in meaning).
'back' says the letters should be written in reverse.
'ill' in reverse letter order is 'lli'.
'cest' going around 'lli' is 'CELLIST'.
'for' is the link.
Can you help me to learn more?
(Other definitions for cellist that I've seen before include "Lloyd Webber?" , "String player" , "Member of orchestra" , "E.g. Casals, du Pre" , "Musician in string section" .)