I've never attempted this before and I've managed to solve all except the top right hand corner. some inspiration would be welcome! 8D: striking South African with a deviation of course in southern river ?????W?Y 6D: Inconclusive choice of basic answers about period, one from recent past ????R?O?N 11A: Can it inhere in poem of Ancient Rome L?????I?? (the clue does say "inhere" as one word; I am not sure whether it's a typo or something too subtle for me to understand)