1 across, of course - my stupidity never fails to annoy me. (Perhaps Drake etc would have made a better fist of dealing with the Aussie batsmen!)
I have two possibilities for the work represented by the extra letters in the acrosses, and one for the downs though it's not entirely relevant since there's no disappearing act that I can see. (Perhaps I have the wrong 4 letter word). As for the 4 in the grid one has already been hinted at, another is very obvious and I can see a possible third but it has only 3 letters which would mean the fourth would need 12 letters. Can that be right?