Call to a mate (4)

I think it could be either:

Which length description are you looking for?:

ahoy

'call to a mate' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for ahoy that I've seen before include "Sailor's shout to ship" , "Nautical greeting" , "Hello sailor!" , "Call for ship's attention" , "Nautical call for attention" .)

I've seen this clue in the Universal, the Family Time and The New York Times.

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