Wrestling for money, nothing more? (4)
I believe the answer is:
sumo
'wrestling' is the definition.
(I've seen this before)
'money nothing more?' is the wordplay.
'money' becomes 'sum' (I've seen this before).
'nothing more?' becomes 'o' (resembles 0).
'sum'+'o'='SUMO'
'for' is the link.
(Other definitions for sumo that I've seen before include "slappers fighting?" , "Japanese wrestling with big fat men" , "Type of Japanese wrestling" , "one of the martial arts" , "Kind of wrestling" .)