Act new roles as "Lola" (7)
I believe the answer is:
dolores
'lola' is the definition.
(I know that lola given name Dolores)
'act new roles' is the wordplay.
'act' becomes 'do' (to do is to act or execute a task).
'new' indicates anagramming the letters.
'roles' with letters rearranged gives 'lores'.
'do'+'lores'='DOLORES'
'as' acts as a link.
(Other definitions for dolores that I've seen before include "Female" , "Old sore about girl" , "Lady" .)