Its aim is to produce winners of course (4,4)
I believe the answer is:
stud farm
'winners of course' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'its aim is to produce' is the wordplay.
I cannot really understand how this works, but
'produce' could be 'farm' (synonyms) and 'farm' is found in the answer.
The remaining letters 'stud' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for stud farm that I've seen before include "place to breed" , "Horse-breeding place" , "Horses are bred and raised here" , "Horse breeding establishment" , "Horse-breeding establishment" .)