While the intended parsing is clear is it not convention to use country IVR codes as given in Chambers ? 36d uses BR for Brazil in wordplay but Saudi Arabia is KSA.
Hi helveticus, it's in the BRB version and it's a language.
I've just checked and it's given by "quicksolve" here with the correct crossers should you need to use it.
I'd be fawningly grateful if some one could tell me where I can find the unclued lights I'm missing; I know the shared origin and I've managed to weasel out three of them but I've still got five I can't find.