Trainee dismissing the first profitable venture (6)
I believe the answer is:
earner
'trainee' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps there's an association between them I don't understand?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for earner that I've seen before include "A worker for money" , "One receiving income (for work)" , "lucrative job" , "Worker with income" , "Something that makes a profit" .)