No flyer involved in three murders (3)
I believe the answer is:
emu
'no flyer' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'involved in three murders' is the wordplay.
'involved in' says the answer is hidden in the clue.
'EMU' can be found hidden inside 'three murders'.
Can you help me to learn more?
(Other definitions for emu that I've seen before include "one offering challenge to Hull?" , "it can't get off the ground" , "Bird of tremulous kind" , "Native Australian bird" , "Long-necked bird" .)