
1) Ferocious fighters 2) Followers of Genghis Khan 3) Formidable ones 4) Golden Horde members 5) Ill-tempered ones 6) Ill-tempered persons 7) Intractable ones 8) Medieval conquerors 9) Mongol invaders 10) Subjects of Genghis Khan 11) Tempestuous ones
Found on
https://www.crosswordclues.com/clue/tartars

The Tartars (more correctly Tatars) are a Slavonic people akin to the Mongols. They live in central Asia and ethnically hold an intermediate position between Europeans and Mongols. The name Tartar was incorrectly applied by Europeans to the Mongol followers of Genghis Khan and the Mongol hordes.
Found on
http://www.probertencyclopaedia.com/browse/CXT.HTM
No exact match found.