Sound coming from individual in front of aircraft (5)
I believe the answer is:
noise
'sound' is the definition.
(a noise is a sound)
'from individual in front of aircraft' is the wordplay.
'from' becomes 'o' (I've seen this in other clues).
'individual' becomes 'i' (Roman numeral for one).
'in' means one lot of letters goes inside another.
'front of aircraft' becomes 'nse' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'o'+'i'='oi'
'oi' going into 'nse' is 'NOISE'.
'coming' acts as a link.
Can you help me to learn more?
(Other definitions for noise that I've seen before include "Commotion" , "Excessive sound" , "Public talk" , "Loud sound; bruit" , "Unwanted sound" .)