New councillor has work for a vegetable harvest (5,4)

I believe the answer is:

green crop

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'a vegetable harvest' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'new councillor has work' is the wordplay.
'new' becomes 'green'.
'councillor' becomes 'cr' (I've seen this in other clues).
'has' says to put letters next to each other.
'work' becomes 'op' (abbreviation for opus).
'green'+'cr'+'op'='GREEN CROP'

'for' acts as a link.

Can you help me to learn more?

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

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