
1) Dynasts 2) Magnates
Found on
https://www.crosswordclues.com/clue/czars

1) US drug officials 2) Absolute rulers 3) Autocrats 4) Business magnates 5) Bygone emperors 6) Bygone leaders 7) Bygone Russian autocrats 8) Captains of industry 9) Crest-fallen russians 10) Despots 11) Early eurasian leaders 12) Former rulers 13) Former Russian emperors 14) Hermitage figures 15) Industry bigwigs
Found on
https://www.crosswordclues.com/clue/czars
No exact match found.