Broke unit exposes what you look like outside (4,4)

I believe the answer is:

skin tone

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'exposes what you look like outside' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'broke unit' is the wordplay.
'broke' becomes 'skint' (both can mean struggling financially).
'unit' becomes 'one' (synonyms).
'skint'+'one'='SKIN TONE'

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I've seen this clue in The Irish Times.

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