Clerk limits supporters engulfing old premier (6)

I believe the answer is:

bracks

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'clerk limits' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'supporters engulfing old premier' is the wordplay.
'supporters' becomes 'bras' (a bra gives support to breasts).
'engulfing' indicates putting letters inside.
'old premier' becomes 'ck' (I can't justify this - if you can you should give a lot more credence to this answer).
'bras' going around 'ck' is 'BRACKS'.

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

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