American Revolution for king? No! (4)

I believe the answer is:

yank

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'american' is the definition.
(Yank can informally mean an American)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for yank that I've seen before include "Tug suddenly" , "Tug shaply" , "American native" , "Tug sharply - American" , "Statesman?" .)

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