Brawn won over rowing team (6)
I believe the answer is:
weight
'brawn' is the definition.
The answer and definition can be both human attributes as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'won over rowing team' is the wordplay.
'won' becomes 'w' (I've seen this in other clues).
'over' says to put letters next to each other (in a down clue, some letters go over others).
'rowing team' becomes 'eight' (eight rowers).
'w'+'eight'='WEIGHT'
Can you help me to learn more?
(Other definitions for weight that I've seen before include "Feeling of oppression; heaviness" , "Attach importance to" , "Vertical force as a result of gravity" , "Significance" , "Trouble" .)