Question dropping leader from paper (5)

I believe the answer is:

issue

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

'question' is the definition.
(thesaurus)

I cannot understand how the rest of the clue works.

(Other definitions for issue that I've seen before include "something to discuss" , "Offspring; problem" , "Outflow or point of concern" , "Number (of periodical)" , "Important topic for debate" .)

I've seen this clue in The Guardian.

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.