Vessel brewery carries back and forth (4)
I believe the answer is:
ewer
'vessel' is the definition.
(I know that ewer is a type of vessel)
'brewery carries back and forth' is the wordplay.
'carries back and forth' indicates a hidden word (the answer is hidden backwards and forwards).
'EWER' can be found hidden inside 'brewery'.
(Other definitions for ewer that I've seen before include "A type of jug" , "Sort of jug" , "Oversized jug" , "Jar for water" , "Water-jar" .)