No, ginge. The only thing they have in common I can hardly reveal here!
Jazzy, you will be right: the setter has a habit today of NOT indicating the break-up of the letters! Thank you very much!
Any ideas btw on the other one? The first E is possibly wrong, but not the 2nd one. You may well be right, ginge, that "13" does NOT refer to the solution at 13 in this grid (& metro is not absolutely certain). ANY suggestions welcome: it's my last one, I hope!