Supposed fool gets extremely embarrassed about hesitant remark (7)
I believe the answer is:
assumed
'supposed' is the definition.
(synonyms)
'fool gets extremely embarrassed about hesitant remark' is the wordplay.
'fool' becomes 'ass' (both can mean a stupid person).
'gets' says to put letters next to each other.
'extremely' suggests removing the centre (only the extremes of the word are used).
'about' is a charade indicator (letters next to each other).
'hesitant remark' becomes 'um' (I am not sure about this - if you are sure you should believe this answer much more).
'embarrassed' with its centre removed is 'ed'.
'ed' put after 'um' is 'umed'.
'ass' put next to 'umed' is 'ASSUMED'.
Can you help me to learn more?
(Other definitions for assumed that I've seen before include "Bogus" , "Affected; supposed" , "Took (control)" , "Falsely adopted" , "Seized" .)