。
I want a woman who's good at cooking.
Literal
Cooking [possessive-の] skillful woman [subject-が] want.
欲しい (want) is an い-adjective used for wanting things or people — distinct from ~たい, which expresses wanting to do an action. 料理のうまい女性 is a relative clause modifying 女性. The が marks what is wanted. The sentence is direct and unhedged.