Save container king left out for wine (6)

I believe the answer is:

barsac

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'for wine' is the definition.
(type of wine)

'save container' is the wordplay.
'save' becomes 'bar' (both can mean 'except').
'container' becomes 'sac'.
'bar'+'sac'='BARSAC'

'king left out' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for barsac that I've seen before include "Scarab (anag) - sweet white wine" , "Sweet Bordeaux wine" , "18 [WINE]" , "French wine" , "some from France" .)

I've seen this clue in The Times.

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