Finish, or spot favoured one (8)
I believe the answer is:
endorsee
'finish or spot favoured one' is the definition.
I can't judge whether this defines the answer.
'finish or spot' is the wordplay.
'finish' becomes 'end' (synonyms).
'spot' becomes 'see' (both can mean to notice or observe).
'end'+'or'+'see'='ENDORSEE'
Can you help me to learn more?
(Other definitions for endorsee that I've seen before include "one given money?" , "One to whom cheque is assigned" , "he eventually gets cheque" .)