Weasel, meadow animal? (5,2,3,5)
I believe the answer is:
snake in the grass
'weasel meadow' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'animal?' is the wordplay.
I cannot quite see how this works, but
'animal?' could be 'snake' (snake is a kind of animal) and 'snake' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for snake in the grass that I've seen before include "unsuspected danger" , "one shouldn't meet with one on the Emerald Isle?" , "nasty person who turns out to be traitor" , "Judas?" , "Hidden danger" .)