Home club contracted US player (2,4)
I believe the answer is:
de niro
'contracted us player' is the definition.
I don't know anything about this answer so I cannot tell whether this works.
'home club' is the wordplay.
'home' becomes 'den' (I've seen this in other clues).
'club' becomes 'iro' (I can't justify this - if you can you should give a lot more credence to this answer).
'den'+'iro'='DE NIRO'
Can you help me to learn more?
(Other definitions for de niro that I've seen before include "Robert ..., film actor" , "Robert ... (''you talkin' to me?'')" , "Actor who plays mainly tough characters" , "Robert . . . . . ., film star of ''Taxi Driver'' and ''Raging Bull''" , "Robert -, Oscar-winning US actor" .)