Creature that flies round lake in rainy weather (5)
I believe the answer is:
owlet
'creature' is the definition.
(owlet is a kind of animal)
'flies round lake in rainy weather' is the wordplay.
I cannot really understand how this works, but
'round' could be 'o' (o is a circular letter) and 'o' is found within the answer.
'lake' could be 'l' (geographical abbreviation) and 'l' is found within the answer.
'rainy' could be 'wet' (similar in meaning) and 'wet' is located in the remaining letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'that' is the link.
Can you help me to learn more?
(Other definitions for owlet that I've seen before include "Nestling" , "Little nocturnal bird" , "Young nocturnal bird of prey" , "Young fly-by-night" , "Offspring of the wise one?" .)