The magazine behind Creatures on the Loose #33, identified by Richard McKenna, is Modern Screen (November 1974). Bolan was a huge Marvel fan who interviewed Stan Lee on the BBC’s Today show in 1975, where Lee revealed that Angie Bowie was interested in doing a Black Widow TV series—which would have been so much more entertaining than whatever morbidly expensive glob of superhero goo that came out last week (or the week before, or the week before, or the week before…). Bolan himself was interviewed about comics in 1975 by soon-to-be Pet Shop Boy Neil Tennant (credit to McKenna once again). You can read the transcript here, and there’s a picture of the article below.
Bonus: here’s Bolan with Stan Lee and Roy Wood (ELO, Wizzard) at London’s Institute of Contemporary Arts in 1975. The Marvel exhibit ran from October 18 through November 2. Bolan died in a car wreck two years later, on September 16, 1977.