Container some wives selected (6)
I believe the answer is:
vessel
'container' is the definition.
(vessel is a kind of container)
'some wives selected' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'VESSEL' can be found hidden inside 'wives selected'.
(Other definitions for vessel that I've seen before include "A ship, a cup" , "bowl?" , "Ship, or artery" , "Ship or large boat" , "Blood-carrying tube or a ship" .)