Plan from ace American lawyer containing information (6)
I believe the answer is:
agenda
'plan' is the definition.
(I know that agenda is a type of plan)
'ace american lawyer containing information' is the wordplay.
'ace' becomes 'a' (abbreviation).
'american lawyer' becomes 'DA' (abbreviation for District Attorney).
'containing' means one lot of letters goes inside another.
'information' becomes 'gen' (gen can informally mean information).
'a'+'da'='ada'
'ada' placed around 'gen' is 'AGENDA'.
'from' is the link.
(Other definitions for agenda that I've seen before include "Meeting's topics" , "List of items of business for committee" , "Items of business for committee meeting" , "matters for discussion" , "List of business for a committee meeting" .)