Crossword Genius

Plane-tracking device (5)

Ross

I believe the answer is:

radar

'plane-tracking device' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for radar that I've seen before include "Palindromic tracking system" , "System for detecting things using radio waves" , "Ranging system" , "Instrument to detect and track distant objects" , "Locator that uses a microwave echo" .)

I've seen this clue in the Newsday.com and the Newsday.
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