well 6 down is 2 letters and the clue is 'compare(abbr) which I thought was cf but perhaps I'm wrong,and 2 down 'main point of interest' can't be crux unless I've got the whole thing horribly wrong! This is why they call it the world's smallest HARDEST crossword !
tyrepill, fuys is definitely right,thankyou,so 2 down,main point etc is clou which is French for star attraction so 6 down 2 letters compare(abbr) must be cp but I don't know why ! Thanks for your help