Woman hiding info makes plan (6)
I believe the answer is:
agenda
'plan' is the definition.
(agenda is a kind of plan)
'woman hiding info' is the wordplay.
'woman' becomes 'ada'.
'hiding' indicates putting letters inside.
'info' becomes 'gen' (informal term for information).
'ada' placed around 'gen' is 'AGENDA'.
'makes' acts as a link.
(Other definitions for agenda that I've seen before include "Scheme" , "matters for discussion" , "Meet to discuss this" , "List of items for discussion at a meeting" , "Item list for meeting" .)