Cryptic crossword No 4,041

Across

1. Top kemosabe's blunder interrupted with: "Head of tribe has dainty headdress" (8)
2. Shuns overtures without primary opening characters (6)
3. Deftly, and each in goodwill, dumps Italian girlfriend (4)
4. Canine causing criminal offence: awful and ending up doing $1000 (7,3)
5. 6d's first quarter in torn muscle is a matter for 11a (6)
6. Performed by Fleetwood Mac (hair styled) before One Direction, not after (8)
7. Tom, overcome this speed regulation! (6,7)
8. Canadian says "What?" in Spanish then (initially berating): "Eres cuatro españoles rudos!" (8)
9. Solution: magical curse around midnight (6)
10. Stringent without a pole, no hospital has one clearly defined area for an owl (10)
11. Hands up this time! (4)
12. Cr__ts (6)
13. An absurd character threw his pussy (8)

Down

1. Nagging: "Annecy borders on Switzerland" (4)
2. Rushing waters next to coalmine are hazards (8)
3. Post-Communist country back in Thai bresaola (6)
4. Open acts informally? No (4)
5. GENERAL ELECTRIC (tiny sign) (6)
6. Being unique, I use reigns controversially (10)
7. Chocolate bar wrapping that is useful for taking off (8)
8. Naughty falcon robs our greenhouse gases (13)
9. Superlative description for 23a when burnt (10)
10. Comes back for tabletops (8)
11. Closer lady is really close! (4,4)
12. X marks the spot and Mark spots the X (6)
13. Formerly unfinished sudoku left in group departure (6)