Crock (3)
I believe the answer is:
pot
'crock' is the definition.
(I know that crock can be written as pot)
This is all the clue.
(Other definitions for pot that I've seen before include "Ceramic vessel" , "Cannabis; sink (snooker)" , "It may call the kettle black" , "Substance from the sap of trees" , "Cooking vessel, plant container and street drug" .)