noun, の adjective
Remember how 男優 was "actor"? Well, I bet you can extrapolate what this one means because it now has woman in it. This is an actress.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
"I don’t want to go to Hogwarts School of Witchcraft and Wizardry anymore. I want to be an actress." "Oh, don’t be ridiculous, Hermione."