This is tough. I have a full grid other then the unch in 11a, as I cannot solve the clue, nor see where the extra letter can come from. Also, cannot parse 8d (well I can, but not with an extra letter). Also the name (BTW, a proper mouth fill) only has 37 letters, but 42 clues minus the 4? without extra letters totals 38? Currently I have 9 targets in my grid, but I think there should be one more.