Actress Sandra ____ (3)
I believe the answer is:
dee
'actress sandra' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for dee that I've seen before include "Balmoral's river" , "John ---, Elizabethan mage" , "Aberdeenshire river" , "Aberdeen's river" , "Welsh banker?" .)