I just listened to the interview again. They discuss Lee Anderson (starts at 11.14 on the Tortoise interview)
https://www.tortoisemedia.com/thinkin/in-conversation-with-jack-monroe/
Jack: "I would probably say that as I have instructed libel proceedings I'm limited as to what I can say in public about that whole situation"
Interviewer: "That is a confirmation on record with Tortoise that you are suing him"
Jack: "I am, I am, I am, sending a legal letter letting him know that what he said was libellous and defamatory and has contributed to the downfall of my, well what I have of, a reputation and um that he might want to reconsider his stance publicly and to all the other agitators and instigators of that. But yes um I have instructed lawyers and we are in touch"