Beermakers rejecting bronze vessels (5)
I believe the answer is:
ewers
'vessels' is the definition.
(ewer is a kind of vessel)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for ewers that I've seen before include "Pitchers" , "Vessels with handle and spout" , "containers" , "Large jugs" , "Water jugs" .)