A princess recalled another in opera (3)

I believe the answer is:

ida

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

'a princess' is the definition.
(Princess Ida is a Gilbert and Sullivan opera)

I can't explain the rest of the clue.

(Other definitions for ida that I've seen before include "Name of girl or mountain" , "lady" , "Mountain in Crete" , "noted princess" , "Classical mountain" .)

I've seen this clue in The Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.