Survive without food, broadÂcasting in real time (4,2,3)
I believe the answer is:
live on air
'real time' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'survive without food broadcasting in' is the wordplay.
'survive' becomes 'live' (synonyms).
'without food' becomes 'air' (I can't explain this - if you can you should give a lot more credence to this answer).
'broadcasting' becomes 'on'.
'in' indicates putting letters inside.
'live'+'air'='liveair'
'liveair' going around 'on' is 'LIVE ON AIR'.
Can you help me to learn more?
(Other definitions for live on air that I've seen before include "Survive without eating" , "Never apparently eat" , "not recorded" .)