Pitcher of Milwaukee Brewers (4)
I believe the answer is:
ewer
'pitcher' is the definition.
('ewer' can be a synonym of 'pitcher')
'of milwaukee brewers' is the wordplay.
'of' says the answer is hidden in the clue.
'EWER' is hidden in the letters of 'milwaukee brewers'.
(Other definitions for ewer that I've seen before include "Vessel for pouring" , "Jug with wide spout" , "Water-jar" , "29 [VESSEL]" , "Sort of jug" .)