Pitcher's run riot (3)
I believe the answer is:
urn
'pitcher's' is the definition.
(I've seen this before)
'run riot' is the wordplay.
'riot' indicates an anagram.
'run' is an anagram of 'URN'.
(Other definitions for urn that I've seen before include "Large container, for tea say" , "Large vessel for making coffee or tea" , "Rounded vase" , "Vessel for tea or ashes" , "Receptacle for ashes of the dead" .)