The manuscript about beer is not for the fair sex (5)

I believe the answer is:

males

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'not for the fair sex' is the definition.
I can't tell whether this defines the answer.

'the manuscript about beer' is the wordplay.
'the manuscript' becomes 'ms' (abbreviation for manuscript).
'about' indicates putting letters inside.
'beer' becomes 'ale' (type of beer).
'ms' placed around 'ale' is 'MALES'.

'is' is the link.

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I've seen this clue in The Irish News.

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