Difficult matters to be solved (8)

I believe the answer is:

problems

(Other definitions for problems that I've seen before include "Situations or matters difficult to understand or deal with" , "Difficulties that need to be resolved" , "puzzles" , "Difficult matters to be dealt with" , "brain teasers" .)

I've seen this clue in The Irish 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.