This was one of the first 15x15s I constructed! Wasn't a fan of all the 3-letter answers (because of the grid) but I think managed to work some fun words in there.
This puzzle was themed around the Canadian television show Murdoch Mysteries (of which I'm a big fan). Other than the obvious clues about the show I tried to include some of the actor/character names (13A/D), genre tropes (20A, 61A?, 1D, 7D, 38D), and some words that fit with the scientific and historical themes of the show (46A, 49A, 54A, 38D, to name some of my favourites). Of course there's also some Canada/Toronto-related clues.