Cryptic crossword No 2,377

Nice one Flash, bit too un-Xim in places for my taste but you knew that would be the case. Favourites 10A, 11A, 12A, 28A, 4D and 19D. Spoiler in reply

Good grid-fill, that! I'm not the most accomplished solver, so had to use reveal a couple of times. Enjoyed my time spent on it (to the detriment of tonight's clue!). Particularly liked 1, 10, 18,27 across and 2, 4, 6 & 19 down. In 7, the definition doesn't seem to fit the answer (to me!)?

Perimeter Nina means nowt other than first second etc