Crossword Genius

Breach of trust by British country (7)

Ross

I believe the answer is:

lebanon

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'country' is the definition.
(Lebanon is an example)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for lebanon that I've seen before include "Beirut's country" , "far from home here" , "Ban Noel from the country" , "Middle Eastern country" , "Republic on Mediterranean" .)

I've seen this clue in The Times.
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