European capital actress Loren mentioned (5)

I believe the answer is:

sofia

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

'european capital' is the definition.
(capital of Bulgaria)

I don't understand how the rest of the clue works.

(Other definitions for sofia that I've seen before include "Bulgarian capital" , "European city" , "Bulgarian city" , "capital city" , "Capital of Bulgaria" .)

I've seen this clue in The Times.

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