He won't change his mind and leave a bit out (5)

I believe the answer is:
bigot
'he won't change his mind' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'leave a bit out' is the wordplay.
'leave' becomes 'go' (to go is to depart or leave).
'out' is an insertion indicator.
'go' inserted within 'bit' is 'BIGOT'.
'and' is the link.
Can you help me to learn more?
(Other definitions for bigot that I've seen before include "One is prejudiced and intolerant" , "Deeply prejudiced and intolerant person" , "Dogmatist" , "Intolerantly prejudiced person" , "Someone intolerant of opinions of others" .)
