Something to detect terrible snores? (6)

I believe the answer is:

sensor

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'something to detect' is the definition.
I can't tell whether this definition defines the answer.

'terrible snores?' is the wordplay.
'terrible' is an anagram indicator.
'snores' is an anagram of 'SENSOR'.

Can you help me to learn more?

(Other definitions for sensor that I've seen before include "Detection device" , "Detecting device" , "One detects" , "A furtive look" , "Detector" .)

I've seen this clue in The Sun.

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