Cryptic crossword No 3,793

Across

1. Came back second to Arsenal in league (7)
2. True to form, amateur to find out answer following university lecturer (2,5)
3. Have intention for self-inflicted damage (3,4)
4. Welsh river flooding neighbouring festival (3,4)
5. Typical Southern politicians (15)
6. Tree spirit firstly keeping goblins out (6)
7. Essential component of converted Central Park pad King set aside (4,3,6)
8. Fellow's translation of sacral text (6)
9. First hint of warning every way credit remains in financial disaster (4,6,5)
10. Descendants of renowned church taking one Latin nerd back (13)

Down

1. Shun seaman with shame (7)
2. In the middle of running through "Cinnamon Girl" (5)
3. Loving afternoon party with band (7)
4. Sound nutritious (7)
5. Projection of lake side (5)
6. Business pursuit (8)
7. Noted Carry On script - "Bugger Bognor"? (6,4,5)
8. Demure old queen's introductions (7)
9. Owls warily dropping leader through procedural process (15)
10. Dealer is skint, gets Roubles (6)
11. Provided note, see, another note with empty talk (2,4,2)
12. How to make Neal trek in Interlaken? (6)