Actress Steenburgen (4)
I believe the answer is:
mary
'actress steenburgen' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for mary that I've seen before include "Mother of Jesus" , "Sinner who became a follower of Jesus" , "O'Rourke, Harney and McAleese" , "Successor to Edward VI" , "-- Queen of Scots" .)