Check report of deception by internet bully (7)
I believe the answer is:
control
'check' is the definition.
(I know that control is a kind of check)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for control that I've seen before include "Keep in line" , "Regulation" , "Regulating device" , "Regulate with self-possession?" , "Command, regulate" .)