Sophia —, actress (5)
I believe the answer is:
loren
This clue is a double definition.
'sophia' is the first definition.
(I know that sophia can be written as Loren)
'actress' is the second definition.
(Sophia Loren)
(Other definitions for loren that I've seen before include "Sofia, Italian film actress" , "See 15" , "Sophia - - (film star)" , "Sophia, actor" , "Sophia --, Italian film actress" .)