Recited little piece of poetry describing what might be seen on trees in winter (4)
I believe the answer is:
rime
'winter' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for rime that I've seen before include "Ice" , "Frost left after freezing fog, or frozen dew" , "dated poetry" , "Ancient Mariner produced?" , "Hoar frost" .)