Ancient Celtic Religion, Linked to Stonehenge

This page is the CodyCross answer for the clue below from Trip to Spain, Group 853, Puzzle 1 (Flamenco Dancers).

Question is: Ancient Celtic Religion, Linked to Stonehenge

and the answer is: DRUIDISM

Word Meaning:

DRUIDISM — The religion, philosophical beliefs, and attendant ritual practices of the druids.

Definitions from Wiktionary.