Crossword Genius

Street light out of its proper place? (5)

Ross

I believe the answer is:

stray

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'its proper place?' is the definition.
I can't judge whether this definition defines the answer.

'street light out' is the wordplay.
'street' becomes 'st' (abbreviation).
'light' becomes 'rays'.
'out' means to remove the last letter.
'rays' with its last letter taken off is 'ray'.
'st'+'ray'='STRAY'

'of' is the link.

Can you help me to learn more?

(Other definitions for stray that I've seen before include "out of place" , "Depart from the right path" , "Go off course" , "Wander from the path" , "Deviate" .)

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