Ships string bean I ordered (11)

I believe the answer is:

brigantines

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'ships' is the definition.
The definition and answer can be both man-made objects as well as being plural nouns.
Perhaps you can see a link between them that I can't see?

'string bean i ordered' is the wordplay.
'ordered' is an anagram indicator.
'string'+'bean'+'i'='stringbeani'
'stringbeani' is an anagram of 'BRIGANTINES'.

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