Crossword Genius

Heiress out to grab gold? That's out of order (4,5)

Ross

I believe the answer is:

hors serie

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'out of order' is the definition.
I know nothing about this answer so I can't judge whether this works.

'heiress out to grab gold?' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'to grab' indicates putting letters inside.
'gold?' becomes 'or' ('or' is the heraldic name for gold).
'heiress' anagrammed gives 'hsserie'.
'hsserie' enclosing 'or' is 'HORS SERIE'.

'that's' is the link.

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I've seen this clue in The Times.
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