Crossword Genius

Needle without an eye? (7)

Ross

I believe the answer is:

obelisk

I'm a little stuck... Click here to teach me more about this clue!

'needle' is the definition.
(I've seen this before)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for obelisk that I've seen before include "Pyramidal monument" , "Tapering monumental pillar" , "Tapering, rectangular stone column" , "Stone "needle"" , "Tapering pillar erected as monument" .)

I've seen this clue in The Globe and Mail.
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