Maybe get a role with a different personality (5,3)
I believe the answer is:
alter ego
'different personality' is the definition.
'alter ego' can be an answer for 'personality' (I have seen 'Secondary personality ' mean 'alter ego' so perhaps 'personality' could also mean 'alter ego'). I am unsure of the 'different' bit.
'maybe get a role with a' is the wordplay.
'maybe' indicates an anagram.
'with' means one lot of letters go next to another.
'get'+'role'='getrole'
'getrole' anagrammed gives 'lterego'.
'lterego' after 'a' is 'ALTER EGO'.
Can you help me to learn more?
(Other definitions for alter ego that I've seen before include "A second personality or intimate friend" , "Is it Kent" , "Go, relate to other self" , "To regale other self" , "Change conceit for other self" .)