Hi, it looks like sid's 2.1.10-3 has the needed support:
echo use-tor >> ~/.gnupg/dirmngr.conf ... made gpg2 use a torified dirmngr here. Woo! :) dirmngr(8) isn't very clear if DNS leaks are supposed to happen, though: the paragraph about --use-tor suggests they will, while the one about --nameserver suggests they won't. I didn't check what happened in practice, and then I won't dare closing this bug report. Cheers! -- intrigeri

