Get rid of container (4)

I believe the answer is:

sack

I believe this is a double definition.

'get rid of' is the first definition.
(as in sacking a worker)

'container' is the second definition.
(type of bag)

(Other definitions for sack that I've seen before include "Fire; hessian bag" , "Flour or grain bag" , "Bag; pillage and destroy" , "Large hessian bag" , "Marching orders?" .)

I've seen this clue in The Times.

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