A group of sailors called out to be added (6)

I believe the answer is:

accrue

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

I don't understand the remainder of the clue.

(Other definitions for accrue that I've seen before include "Build up interest" , "Grow by addition" , "Fall due; accumulate" , "Grow by adding to" , "Accumulate or grow like interest" .)

I've seen this clue in The Independent.

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