Would pitch keep waving to the food cart? (5-5)

I believe the answer is:

chuck-wagon

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'would pitch keep waving to' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'food cart?' is the wordplay.
'food' becomes 'chuck' (chuck is a kind of food).
'cart?' becomes 'wagon' (cart is a kind of wagon).
'chuck'+'wagon'='CHUCK-WAGON'

'the' is the link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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