Mean shade one must overlook (10)
I believe the answer is:
supervisor
'one must overlook' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'mean shade' is the wordplay.
I cannot really understand how this works, but
'shade' could be 'visor' (I've seen this in another clue) and 'visor' is present in the answer.
The remaining letters 'super' 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 supervisor that I've seen before include "Line manager" , "One looks over" , "Man in charge" , "gaffer?" , "Tutor" .)