What ships can do with missiles (6)

I believe the answer is:

cruise

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'what ships can do with missiles' is the definition.
The definition suggests a singular noun which matches the answer.

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(Other definitions for cruise that I've seen before include "Sail around" , "Ship holiday" , "Sail smoothly" , "Tour by ship" , "Holiday on liner" .)

I've seen this clue in the Evening Standard.

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