Come on, Mr Wild is not entitled (8)
I believe the answer is:
commoner
'is not entitled' is the definition.
I can't tell whether this defines the answer.
'come on mr wild' is the wordplay.
'wild' indicates an anagram.
'come'+'on'+'mr'='comeonmr'
'comeonmr' with letters rearranged gives 'COMMONER'.
Can you help me to learn more?
(Other definitions for commoner that I've seen before include "certain type of undergraduate" , "Less rare; no aristocrat" , "Person who holds no title" , "A non-aristocrat" , "One not of noble rank" .)