Sets up English school investing in island area where pilots can work unheeded
I believe the answer is:
airspace
'sets up english school investing in' is the definition.
I can't judge whether this defines the answer.
'island area where pilots can work unheeded' is the wordplay.
I cannot quite understand how this works, but
'island' could be 'i' and 'i' is present in the answer.
'area' could be 'space' (space is a kind of area) and 'space' is present in the answer.
The remaining letters 'ar' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for airspace that I've seen before include "Atmosphere over (area of) earth" , "Here planes fly" , "What pilot goes through" .)