For sailing, sound crews are needed (6)

I believe the answer is:

cruise

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'for sailing' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

I cannot understand how the rest of the clue works.

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(Other definitions for cruise that I've seen before include "Ocean trip taken for pleasure" , "Pleasure ocean voyage" , "Pleasure trip on ship" , "Sail smoothly" , "Holiday at sea" .)

I've seen this clue in the Evening Standard.

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