Unawareness in school about the Muppets’ inventor entertaining one (15)
I believe the answer is:
incomprehension
'unawareness' is the definition.
(thesaurus)
'in school about the muppets' inventor entertaining one' is the wordplay.
I cannot really understand how this works, but
'in' is present in the answer.
'school' could be 'comp' (short for comprehensive) and 'comp' is found within the answer.
'about' could be 're' ('re' means regarding or about) and 're' is found within the answer.
'one' could be 'i' (Roman numeral) and 'i' is found within the answer.
The remaining letters 'henson' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for incomprehension that I've seen before include "Failure to get" , "Lack of understanding" .)