All seems quiet on the western front.
I have just finished the grid before logging in.
I assume 1a is the two-letter Chritian name of a famous gangster before two letters are added to give another Christian name.
2d 'lacking term' is this minus d for day?
I couldn't work out why we are told that the grid has 180 degree symmetry but then geometry has never been my strongest subject.
Best of luck to you all