Capone ordered about 50, in total (3,4)
I believe the answer is:
all told
'in total' is the definition.
(I've seen this before)
'capone ordered about 50' is the wordplay.
'capone' becomes 'al'.
'ordered' becomes 'told' ('tell' can be a synonym of 'order').
'about' is a charade indicator (letters next to each other).
'50' becomes 'l' (roman numeral).
'told' put after 'l' is 'ltold'.
'al'+'ltold'='ALL TOLD'
(Other definitions for all told that I've seen before include "In summary" , "book reading's finished?" , "To summarise" , "sum" , "Nothing missed out" .)