Excellent puzzle. Thank you, Gaston. With the range of variables it initially looked very difficult to fill the grid but it was much easier in practice; one of the unclued down entries triggered a memory and it was fairly plain sailing from there.
If I remember aright, the creator denied the pseudonymous relationship but that is irrelevant to the quality of the puzzle. But I confess that I shared (and still share) John Peel’s opinion of the theme.