Announced latest arrivals in docks (6)

I believe the answer is:

berths

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'docks' is the definition.
(I've seen this before)

I don't understand how the remainder of the clue works.

(Other definitions for berths that I've seen before include "Passenger beds on ships" , "Beds on ships or trains" , "Beds in cabins" , "Docks" , "Spaces in port for ships and boats" .)

I've seen this clue in The Daily Mail.

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