clever clogs vs Britain

clever clogs and Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
clever clogs	Yes	No	No	No
Britain	Yes	No	No	No

clever clogs (noun)	Britain (noun)
an intellectual who is ostentatiously and irritatingly knowledgeable	a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom