Bringers of ultimate strife to their men? (7)

I believe the answer is:

females

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'bringers of ultimate strife' is the definition.
I can't tell whether this definition defines the answer.

'their men?' is the wordplay.
'their' becomes 'fe' (I can't justify this - if you can you should believe this answer much more).
'men?' becomes 'males' (man is a kind of male).
'fe'+'males'='FEMALES'

'to' acts as a link.

Can you help me to learn more?

(Other definitions for females that I've seen before include "Ewe and doe?" , "misses, perhaps" .)

I've seen this clue in the Evening Standard.

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