State commercial breaks Italy broadcast cease to work (4,2,1,3)
I believe the answer is:
call it a day
'cease to work' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'state commercial breaks italy broadcast' is the wordplay.
'state' becomes 'cal' (short for California).
'commercial' becomes 'ad' (abbreviation for advertisement).
'breaks' means one lot of letters goes inside another (inserted letters break into the word).
'broadcast' indicates anagramming the letters (letters scattered or cast around).
'italy' is an anagram of 'litay'.
'ad' placed inside 'litay' is 'litaday'.
'cal'+'litaday'='CALL IT A DAY'
Can you help me to learn more?
(Other definitions for call it a day that I've seen before include "Abandon work for now" , "Stop work" , "sign off" , "pack up" , "announce decision to quit" .)