Surveying instrument (10)

I believe the answer is:

theodolite

'surveying instrument' is the definition.
(theodolite is a kind of surveying instrument)

This is all the clue.

(Other definitions for theodolite that I've seen before include "Surveyor's instrument" , "What a surveyor might use" , "transit, in America" , "Surveying instrument" .)

I've seen this clue in The Guardian, The New Yorker and the Thinks.com.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.