It came to a stop in a Marilyn Monroe movie (3)

I believe the answer is:

bus

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'it came to a stop in a marilyn monroe movie' is the definition.
The definition suggests a singular noun which matches the answer.

This is all the clue.

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(Other definitions for bus that I've seen before include "Means of public transport" , "Public service vehicle" , "Use transport" , "Coach" , "eg Double-decker" .)

I've seen this clue in the Evening Standard.

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