Trouble with flight time after AI emptied register (3,4)
I believe the answer is:
air rage
'trouble with flight' is the definition.
I can't tell whether this definition defines the answer.
'time after ai emptied register' is the wordplay.
'time' becomes 'age' (an age is a period of time).
'after' is a charade indicator (letters next to each other).
'emptied' says to hollow out the word (remove centre letters).
'register' with its middle taken out is 'rr'.
'ai'+'rr'='airr'
'age' after 'airr' is 'AIR RAGE'.
Can you help me to learn more?
(Other definitions for air rage that I've seen before include "heightened anger?" , "high aggression" .)