Crossword Genius

Little brother run in for Mexican labourer? (7)

Ross

I believe the answer is:

bracero

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'mexican labourer?' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'little brother run in' is the wordplay.
'little brother' becomes 'bro'.
'run' becomes 'race' (synonyms).
'in' means one lot of letters goes inside another.
'bro' going around 'race' is 'BRACERO'.

'for' is the link.

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