Serve from a pitcher (4)
I believe the answer is:
pour
'serve from a pitcher' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pour that I've seen before include "Cause to flow as from pot to cup" , "Teem" , "Pelt - decant" , "Cause to flow or rain heavily" , "Serve liquid" .)