Actress Moorehead (5)
I believe the answer is:
agnes
'actress moorehead' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for agnes that I've seen before include "St --' Eve, poem by Lord Tennyson" , "Woman" , "Girl's name" , "The Eve of St. - (Keats)" , "Miss Grey" .)