Women of the future (5)

I believe the answer is:

girls

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'women' is the definition.
(girl is a kind of woman)

I cannot understand how the remainder of the clue works.

(Other definitions for girls that I've seen before include "Members of brownies or guides - one of the 14 films" , "Young females" , "Female children" , "Youthful females" , "Young ladies" .)

I've seen this clue in the Evening Standard.

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