Country singer performs album, including nice introductions (5)
I believe the answer is:
Here is my best explanation:
'country' is the definition.
(Spain is an example)
'singer performs album including nice introductions' is the wordplay.
'introductions' says to take the initial letters (I've seen 'introduction' mean this).
The first letters of 'singer performs album including nice' is 'SPAIN'.
(Other definitions for spain that I've seen before include "EU country", "Crazy pains?", "European nation", "European country", "Iberian country", "location of Estoril", "Kingdom", "holiday country", "It pains badly when in the country" and "Ditto".)