Answer:

DRUIDS

Answer	Crossword Clue
DRUIDS	Ancient priests
DRUIDS	Ancient Celtic priests
DRUIDS	Some ancient Celts

DRUIDS	Pre-Christian Celtic priests
DRUIDS	Celtic soothsayers
DRUIDS	Priestly class of ancient Britain
DRUIDS	Priests of ancient Britain.
DRUIDS	Old Irish priests.
DRUIDS	Gaulish seers.
DRUIDS	Celtic priests
DRUIDS	Ancient order of priests, etc.

DRUIDS	Non-Christian priests
DRUIDS	Tree worshipers
DRUIDS	Pre-Christian Celts
DRUIDS	Learned Celts
DRUIDS	Priests of old
DRUIDS	Stonehenge priests