Work schedule of motoring group assuming good finish (6)
I believe the answer is:
agenda
'work schedule' is the definition.
'motoring group assuming good finish' is the wordplay.
'motoring group' becomes 'aa' (Automobile Association).
'assuming' is an insertion indicator.
'good' becomes 'g' (abbreviation).
'finish' becomes 'end' ('end' can be a synonym of 'finish').
'g'+'end'='gend'
'aa' placed around 'gend' is 'AGENDA'.
'of' acts as a link.
(Other definitions for agenda that I've seen before include "Business to be transacted" , "Items of business for committee meeting" , "Schedule of items for meeting" , "Programme of a meeting" , "Programme of business" .)