"Silkwood” star (6)
I believe the answer is:
streep
'silkwood star' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for streep that I've seen before include "Film star in The Iron Lady, b. 1949" , "See 22" , "Meryl - - (films)" , "Inflamed swelling inside" , "[Thespian]" .)