Send packing and a spacious container (4)
I believe the answer is:
sack
This might be a double definition.
'send packing' is the first definition.
(thesaurus)
'a spacious container' is the second definition.
'sack' can be an answer for 'container' (sack is a kind of container). I am not certain of the 'a spacious' bit.
'and' is the link.
Can you help me to learn more?
(Other definitions for sack that I've seen before include "Fire - plunder and destroy" , "A bag for Falstaff's drink" , "boot" , "Dismiss (from a job)" , "Destruction" .)