Green’s Dictionary of Slang

a female journalist.

1976		Private Eye 5 Mar. 5/1: Also on this holiday was petite hackette Ms —.
1990		John Sutherland Mrs. Humphry Ward 289: Out of her ‘six words with Dorothy’ (as Mary calculated) this hackette concocted a column of nonsensical stuff.
1999		Guardian G2 27 May 5: The victims of his composite hackette, Fanny Tarrant, respond to her primarily as a bundle of sexual promise.
2000		Indep. 5 Sept. 🌐 [heading] Harry Potter and the Horrible Hackette.