Spanish capital (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
madrid
'spanish capital' is the definition.
(capital of Spain)
This is all the clue.
(Other definitions for madrid that I've seen before include "Spanish capital" , "European capital city" , "Capital of Spain since 1561" , "City with the Prado national art gallery" , "Spain's capital" .)