Nth gin she ordered — at one of these? (3,6)

I believe the answer is:

hen nights

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'one of these?' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'nth gin she ordered' is the wordplay.
'ordered' indicates anagramming the letters.
'nth'+'gin'+'she'='nthginshe'
'nthginshe' with letters rearranged gives 'HEN NIGHTS'.

'at' is the link.

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I've seen this clue in The Times.

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