Crossword Genius

Sub system (5)

Ross

I believe the answer is:

sonar

'sub system' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for sonar that I've seen before include "What a near-blind creature uses" , "System for locating underwater objects" , "Method of echolocation" , "Underwater detection device" , "System to locate underwater objects" .)

I've seen this clue in the King Feature Syndicate and The Wall Street Journal.
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