Dribbler who drank stronger beer (4)
I believe the answer is:
best
'dribbler who drank stronger beer' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
This is all the clue.
Can you help me to learn more?
(Other definitions for best that I've seen before include "Most outstanding" , "Superlative" , "Limit of one's ability" , "Peerless" , "Optimal" .)