Might he react badly to informative type? (7)
I believe the answer is:
teacher
'might he react badly to informative type?' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'might he react' is the wordplay.
'might' indicates an anagram (I've seen this in other clues).
'he'+'react'='hereact'
'hereact' is an anagram of 'TEACHER'.
Can you help me to learn more?
(Other definitions for teacher that I've seen before include "Member of school staff" , "supply?" , "Cheater (anag.)" , "The race (anag.)" , "Chips, perhaps?" .)