Run off to get receptacle (3)
I believe the answer is:
urn
'receptacle' is the definition.
(I know that Urn is a type of receptacle)
'run off' is the wordplay.
'off' is an anagram indicator.
'run' is an anagram of 'URN'.
'to get' acts as a link.
(Other definitions for urn that I've seen before include "Container for tea or ashes" , "Receptacle for human ashes" , "Large vase for holding ashes of dead person" , "Run to get funeral vase" , "Vase-shaped vessel" .)