Country capital, yet concealed (5)
I believe the answer is:
italy
'country' is the definition.
(Italy is an example)
'capital yet concealed' is the wordplay.
'concealed' indicates the answer is hidden within the clue.
'ITALY' is hidden in the letters of 'capital yet'.
(Other definitions for italy that I've seen before include "Country of southern Europe" , "South European country" , "Problematical (informal)" , "Country of Bologna, Bari and Brescia" , "Southern European country" .)