How to immobilise swine with equality (6)

I believe the answer is:

hogtie

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'how to immobilise' is the definition.
I can't judge whether this defines the answer.

'swine with equality' is the wordplay.
'swine' becomes 'hog' (hog is a kind of swine).
'with' says to put letters next to each other.
'equality' becomes 'tie' (I have seen 'Equality of score ' mean 'tie' so perhaps 'equality' could also mean 'tie').
'hog'+'tie'='HOGTIE'

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

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