Big coffee container (3)
I believe the answer is:
urn
'big coffee container' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for urn that I've seen before include "Huge teapot" , "Run to get Greek vase" , "Large vase for funeral ashes" , "Large pot for coffee or tea" , "Large vase for holding ashes of dead person" .)