Unpack (6)
I believe the answer is:
unload
'unpack' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for unload that I've seen before include "Get rid" , "Remove goods from (a vehicle or ship)" , "Remove cargo from ship or charge from gun" , "Remove cargo from ship or goods from lorry" , "Take cargo off (a ship)" .)