Team push for something more enriching? (4,6)

I believe the answer is:
side hustle
'something more enriching?' is the definition.
I know nothing about this answer so I can't judge whether this works.
'team push' is the wordplay.
'team' becomes 'side' (both can mean a sports team).
'push' becomes 'hustle' (I can't justify this - if you can you should give a lot more credence to this answer).
'side'+'hustle'='SIDE HUSTLE'
'for' is the link.
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