Picaroon is an absolute master of his art and continually produces clever, witty and entertaining crosswords, and this is no exception.
I actually got 1d before 13d and its related clues, which, given that I couldn't see a connection, caused me to grow increasingly confused and, dare I say it, a teensy, teensy bit angry....
... and then the PDM came crashing down on my head! This was all the more enjoyable because of my earlier state of heightened angst.
Too many COD contenders to list (really Bren, you got somewhere else to be?) but I'm going to pick the outstanding 7d. There is not an ounce of fat on this clue, with every word contributing to either the definition or word play, not to mention the surface is simply sublime.
Thanks to Picaroon for a truly wonderful puzzle:-)