Struggling a bit with this one today. Please help
9a A heron's fluttering bout in Humberside (7) --r-s-a
10a Rule that is not in the statute book (9,3) -n-r---e- law
12a An Italian with status cannot be included (6) t---a-
24a Gently replaces claret with some quills (7) --e-t--
4d Thanks for success I had on the island (6) t-----
13d Port for troubled oarsmen (3,4) --n -e-o
16d Mounting castle maintenance (6) -p-e--