Where, in W. Africa, Tony gets out of line (5)

I believe the answer is:

benin

I'm a little stuck... Click here to teach me more about this clue!

But I can't explain it at all! Could you help me understand?

(Other definitions for benin that I've seen before include "Nation" , "West African state, formerly called Dahomey" , "West African republic" , "West Africa country, formerly a French colony" , "French-speaking West African country" .)

Want a hint initially instead of a full solution? Install my app