Crossword Genius

Four-sided tapering pillar (7)

Ross

I believe the answer is:

obelisk

'four-sided tapering pillar' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for obelisk that I've seen before include "Tapering square pillar" , "Tapering pillar erected as monument" , "Cleopatra's Needle, for instance" , "Pyramidal monument" , "Monument with four sides and tapering top" .)

I've seen this clue in The Guardian.
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