'Remarkable cure-all' – banal actress (6,6)
I believe the answer is:
lauren bacall
'actress' is the definition.
(I know that Lauren Bacall is a actress)
'remarkable cure-all banal' is the wordplay.
'remarkable' is an anagram indicator.
'cure'+'all'+'banal'='cureallbanal'
'cureallbanal' anagrammed gives 'LAUREN BACALL'.
(Other definitions for lauren bacall that I've seen before include "Betty Joan Perske" , "Film star" .)