Criticism (4)
'criticism' is the definition.
(flak is a kind of criticism)
This is all the clue.
(Other definitions for flak that I've seen before include "Criticism (colloq.)" , "stick" , "that can bring down a plane" , "Ground-to-air attack: verbal abuse" , "Anti-aircraft fire - strong criticism" .)
'criticism' is the definition.
(reproof is a kind of criticism)
This is all the clue.
(Other definitions for reproof that I've seen before include "Ticking off" , "Rebuke" , "Rocket" , "Censure" , "Criticism" .)
'criticism' is the definition.
(faultfinding is a kind of criticism)
This is all the clue.