City understanding what the mob might hear? (4,3)
I believe the answer is:
riot act
'what the mob might hear?' is the definition.
I can't tell whether this defines the answer.
'city understanding' is the wordplay.
'city' becomes 'rio' (Rio de Janeiro).
'understanding' becomes 'tact' (I've seen this before).
'rio'+'tact'='RIOT ACT'
Can you help me to learn more?
(Other definitions for riot act that I've seen before include "Citator may read this as stern rebuke" , "used to control disorder" , "measure to keep order" , "what constitutes warning" , "something read to little devils?" .)