Way in which a girl is taken in by a man (6)
I believe the answer is:
manner
'way' is the definition.
(I know that way can be written as manner)
'a girl is taken in by a man' is the wordplay.
'a girl' becomes 'anne' (girl's name).
'is taken in by' is an insertion indicator.
'a man' becomes 'mr' (Mr is an example).
'anne' going inside 'mr' is 'MANNER'.
'in which' is the link.
(Other definitions for manner that I've seen before include "Person's bearing or way of behaving" , "Mode" , "Deportment or method" , "Style, way" , "Fashion, style" .)