Inspiring horror (8)

I believe the answer is:

gruesome

(Other definitions for gruesome that I've seen before include "Repulsive, horrific" , "Sickening, macabre" , "Horrifying and revolting" , "'Grisly, macabre (8)'" , "Repulsive, horrid" .)

I've seen this clue in the Sydney Morning Herald.

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