Hah...so now I know!  You rats just wait and try to entice me in to solve the hard ones for you!    Still, at least it gives me good practice, and once I've got something I just memorise it in case I ever need it again...

UEFA

(yet another one that's not a word as such, but I don't think I need to explain what this stands for...well, maybe only to the women, who might not be into football...