Spanish fellow reportedly thriving (6)
I believe the answer is:
manuel
'spanish' is the definition.
Both the definition and answer are singular nouns.
Perhaps they are linked in a way I don't understand?
'fellow reportedly thriving' is the wordplay.
'fellow' becomes 'man' (fellow can mean a man).
'reportedly thriving' becomes 'uel' (I can't justify this - if you can you should give a lot more credence to this answer).
'man'+'uel'='MANUEL'
Can you help me to learn more?
(Other definitions for manuel that I've seen before include "Abduct" , "Fawlty Towers waiter" , "Spaniard" , "incompetent hotel worker" .)