Why there was no report on the shooting? (8)
I believe the answer is:
silencer
'why' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for silencer that I've seen before include "It deadens the sound of firing" , "Reclines with sound-muffling device" , "Device to muffle sound of gun" , "Vehicle noise reducer" , "that back-seat drivers will ignore" .)