Actress Spacek (5)
I believe the answer is:
sissy
'actress spacek' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for sissy that I've seen before include "Timorous person" , "Effeminate boy" , "Feeble and effeminate" , "Effeminate man" , "Effeminate and over-timorous male" .)