Crossword Genius

Prehistoric burial mounds (6)

Ross

I believe the answer is:

cairns

'prehistoric burial mounds' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for cairns that I've seen before include "Heaps of stones - dogs" , "Prehistoric burial mounds made of stones" , "Stone mounds" , "Mounds of stones on mountain tops" , "Mound of stones" .)

I've seen this clue in the Irish Times (Simplex) and The Irish Times.
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