Greek craft said to test lots of paper (8)
I believe the answer is:
triremes
'greek' is the definition.
Although both the answer and definition are nouns, they are not in the same form of the noun. However, I know that 'greek' relates to this answer.
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for triremes that I've seen before include "boats" , "Galleys" , "They had three banks" .)