Canoe's breaking lashings (6)
I believe the answer is:
oceans
'lashings' is the definition.
Although both the answer and definition are plural nouns, I cannot see how they can define each other.
'canoe's breaking' is the wordplay.
'breaking' indicates an anagram.
'canoes' is an anagram of 'OCEANS'.
Can you help me to learn more?
(Other definitions for oceans that I've seen before include "Vast bodies of water" , "Bodies of salt water" , "expanses?" , "Large seas" , "Strange canoes on these waters" .)