In the menu you'll see there is a "Show answer" button. The host can log in on a different tab or device to see the answer to the currently flipped clue.
I believe that explaininjs is making a pedantic/semi-tongue-in-cheek joke about the gimmick of Jeopardy where the clues are "answers" and contestants buzz in to respond with the "question". https://youtu.be/KDTxS9_CwZA?t=156
It would be pedantic if it were indeed nothing but a joke, but I think the existence of this gimmick forces us to assimilate our non-joking language in order to avoid ongoing problems. Easier to have common ground among participants and onlookers than not. To exclude yourself, should you wish, simply stick to clue/response.
I cannot find this button. :( It also took me multiple reloads to find the menu button since it disappears after a few seconds. My eyes are drawn to the board and not the upper left hand corner.