Xwordfan, I've got New Wave and Fen (an old boys' cry, something similar - I looked it up yesterday), but I don't know how they work. I've got Bath for 18 A.
I found it a help to photocopy the grid and block out the answers to the clues with superfluous letters. Four foreign words immediately stood out in the acrosses and when I googled them..... it all became clear.