Here is a context clues worksheet on the adjective macabre. If you teach Poe, or anyone like him (Stephen King definitely comes to mind here), or gothic novels, it’s hard to imagine that students wouldn’t need to know this word.
If you find typos in this document, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.