Catches fish by degrees? (6)
I believe the answer is:
angles
This could be a double definition.
'catches fish' is the first definition.
(angling is a kind of catching fish)
'degrees?' is the second definition.
The answer and definition can be both related to thinking as well as being plural nouns.
Maybe you can see a link between them that I can't see?
'by' is the link.
Can you help me to learn more?
(Other definitions for angles that I've seen before include "crooks" , "Spaces between lines that meet" , "Ways of approaching" , "Attempts to catch one from school" , "Fishes with hook and bait" .)