Charlie

That was really hard and really, really good. None of the 'solves' felt familiar, each one was interesting. Thanks!

55D? that was some kind of brilliance - I was hunting around my brain like a manic, trying to be all clever... And 18A - I literally groaned. Pretty great!

These are not the most enjoyable puzzles, in so much as there's a whole second puzzle which is often not as well developed and thus wonky to solve - could just be me.