Coshes slimy pests! (5)
I believe the answer is:
slugs
This clue might be a double definition.
'coshes' is the first definition.
The answer and definition can be both man-made objects as well as being plural nouns.
Maybe you can see an association between them that I can't see?
'slimy pests' is the second definition.
The definition and answer can be both people as well as being plural nouns.
Perhaps you can see an association between them that I don't see?
Can you help me to learn more?
(Another definition for slugs that I've seen is " Land molluscs".)