One-way woman? (3)
I believe the answer is:
ann
'woman?' is the definition.
(woman's name)
'one-way' is the wordplay.
'one' becomes 'an' (an apple is one apple).
'way' becomes 'n' (Compass direction - North).
'an'+'n'='ANN'
(Other definitions for ann that I've seen before include "female" , "Lady's name" , "- Widdecombe MP" , "Girl's name" , "... -Margaret (film actress)" .)