Hi Willianseal,
I used to date a girl in Setchey and loved spending sunny days in Norfolk:-)
7a Letters 2, 4 ..... of first word then it's "checks" as in 'stops' a river maybe? - I got held up for ages thinking the answer had to be firearm which, although close, I had to give up on after eventually realising that it was unparsable (is that a word?
11d - Does begin with M and is a common word for a "doctor" but also, amazingly (IMO) means "plant with ?ellow flowers"