Hillary’s clip shows how kaiser is ousted for Israeli PM (9)

I believe the answer is:

karabiner

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'pm' is the definition.
Both the answer and definition are singular nouns.
Perhaps you can see a link between them that I can't see?

I don't understand how the rest of the clue works.

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(Another definition for karabiner that I've seen is " Metal link with a spring clip, used by climbers".)

I've seen this clue in the Sydney Morning Herald.

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