Bug among grove’s fringes (5)
I believe the answer is:
midge
'bug' is the definition.
The answer and definition can be both animals as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for midge that I've seen before include "Dipterous insect, in swarms by water" , "Tiny swarming fly" , "Two-winged fly" , "A small biting gnat-like insect" , "Small swarming biting insect" .)