14a like months one's taken in cal.city,end of summer 5 ?U???
21a outer layer of cell core acts differently 8 ??????R?
16a show of amusement about wowser that's infectious 7 S??T???
17a norwegian mineral-it's found in very remote location 7 THU????
thanks
LUNAR must be right but I'm surprised the clue which is correctly reproduced) doesn't have something in (eg reference to France) indicate the one is UN