Trite rhyme for a spectacle (5)

I believe the answer is:

sight

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'spectacle' is the definition.
(spectacle can mean a sight or display)

I can't explain the remainder of the clue.

(Other definitions for sight that I've seen before include "Visual perception" , "Vista" , "Aiming device on gun" , "The ability to see - spectacle" , "something ugly" .)

I've seen this clue in the Evening Standard.

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