Quick crossword No 190

Across

1. Evangelist's rating (4)
2. Faint security measure? (5,3)
3. A B C D F or G? (4)
4. A city obsession - the possibilities are boundless (8)
5. Thinking quietly about one's image (10)
6. Sadly inept, I use this when dressing formally (3,3)
7. Maroon thread (6)
8. Seeking perfection, I meet crazy ladies with nervous twitch (10)
9. Visibly upset, I get data processed (8)
10. Ascetic resident of Jellystone (4)
11. Pull up suddenly, unhappy about wrecked depot (4,4)
12. Unknown churchman loses his head (4)

Down

1. Building a minster’s towers (8)
2. Gave formal consent to India after I'd gone mad (8)
3. Dimension leading explorers never get to handle at the start (6)
4. Thread to follow Peter's sister (10)
5. Poet's overdose around six (4)
6. Strung as evenly, they provide marine power (4)
7. Late, as a polite cough may be (10)
8. Depressed actors finish off their drinks (4,4)
9. Drawing out non-adult training (8)
10. Arrived before artist could be shot with this (6)
11. Obstructs watering holes (4)
12. Artist is some rising minor impressionist (4)