I think most of time they would say that they don't have a "paid clergy"
They're not exactly claiming not to have a clergy. Just that it is not paid.
Which, I'm guessing, does not include the compensation the COs get.
*** w03 8/1 p. 20 “You Received Free, Give Free” ***
By way of contrast, Jehovah’s Witnesses endeavor to imitate Jesus and his early disciples. They have no paid clergy. Each Witness is a minister charged with the responsibility of preaching the “good news of the kingdom” to others.
*** w01 6/1 p. 16 par. 15 “If God Is for Us, Who Will Be Against Us?” ***
Who uphold Bible standards of conduct, at the risk of being considered old-fashioned? What group is noted for having no paid clergy, all of its members being preachers?
*** w94 8/15 p. 10 Why Do the Witnesses Keep Calling? *** In contrast, the Witnesses have no paid clergy, and often their Bible literature is offered without price to sincere seekers of truth