It's predetermined in favour, for example, of me (8)
I believe the answer is:
foregone
'it's predetermined' is the definition.
(thesaurus)
'in favour for example of me' is the wordplay.
'in favour' becomes 'for' (as in being for a particular cause).
'for example' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'of me' becomes 'one' (I can't explain this - if you can you should give a lot more credence to this answer).
'for'+'eg'+'one'='FOREGONE'
Can you help me to learn more?
(Other definitions for foregone that I've seen before include "This conclusion was obvious in advance" , "This conclusion can be anticipated" , "decided" , "A -- conclusion is an inevitable result" , "Eschewed" .)