Cries when the law is broken (5)
I believe the answer is:
wails
'cries' is the definition.
(wailing is a kind of crying)
'the law is broken' is the wordplay.
'broken' indicates an anagram.
'law'+'is'='lawis'
'lawis' is an anagram of 'WAILS'.
'when' is the link.
(Other definitions for wails that I've seen before include "Laments loudly" , "Cries" , "Grieves" .)