2. this star does not shine (6,8) 15. don't make sandwiches with this fellow (4,8) 28. a sunset in portugal (5,6,5) 36. a member of the carrot family-the teasel (3,5) 45. ungainly on land but superb swimmers (6,5) all are connected with the sea and seaside.
goldiewi there is a plant called The Sea Carrot so perhaps that's No36, I would have said Sea Holly for it like shaneystar as the head looks like a teasel ??