
1) Fictional henchman 2) Literary villain
Found on
https://www.crosswordclues.com/clue/nazgûl

The Nazgûl (from Black Speech nazg, `ring`, and gûl, `wraith, spirit` (presumably related to gul, `sorcery`); also called Ringwraiths, Ring-wraiths, Black Riders, Dark Riders, the Nine Riders, or simply the Nine are characters in J. R. R. Tolkien`s Middle-earth legendarium. They were nine men who succumbed to Sauron`s power and attained ...
Found on
http://en.wikipedia.org/wiki/Nazgûl
No exact match found.