Crossword Genius

Frighten by shaking rattles (7)

Ross

I believe the answer is:

startle

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

'shaking rattles' is the wordplay.
'shaking' indicates an anagram.
'rattles' with letters rearranged gives 'STARTLE'.

'by' acts as a link.

(Other definitions for startle that I've seen before include "Scare" , "Surprise greatly, alarm" , "Cause to feel sudden alarm" , "Astonish" , "Shock (someone)" .)

I've seen this clue in the Evening Standard.
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