Sentence:  Some of them preferred only men; some of them dressed in flamboyant “feminine” style; some continued to be interested also in women but wore lipstick and dressed as “queans” when they went to gay clubs. But many of these men who were “to be had” were “<WSD>rough trade</WSD>” whose self-understanding was by no means either effeminate in gender role or exclusively homosexual in object choice. 
Meaning of the word marked with <WSD> tags:  Rough or tough men, either gay or straight, who are available as casual sexual partners for other men (for example in exchange for money).