Caterer's container (3)
I believe the answer is:
urn
'caterer's container' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for urn that I've seen before include "Pot, vase" , "Run to get funeral vase" , "Receptacle for human ashes" , "Receptacle for ashes of the dead" , "Repository for ashes" .)