Taking advantage of characters from 14 across in stockyards synonymous with Dexter's family (7,8)

I believe the answer is:

milking parlours

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'taking advantage of characters from 14 across in stockyards synonymous with dexter's' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'family' is the wordplay.
I cannot quite understand how this works, but
'family' could be 'kin' ('kin' can be a synonym of 'family') and 'kin' is located in the answer.
This may be the basis of clue (or it may be nonsense).

Can you help me to learn more?

I've seen this clue in the Irish Times.

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