Crossword Genius

Boxed in, one has a trying time (5)

Ross

I believe the answer is:

juror

'one has a trying time' is the definition.
(a juror participates in a trial)

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

(Other definitions for juror that I've seen before include "Court panellist" , "One serving in a criminal court" , "Member of panel in court" , "One of 12 in court" , "Trial panellist" .)

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.