Cryptic crossword No 3,601

Across

1. Animal tearing up envelope (6)
2. Servant girl recalled Virginia leading (6)
3. How this will be written might be expected from the wings of 1, 7, 13, 18, 21 or 25 (6)
4. A knight returns to cart around grandee (10)
5. Gamete from collections of animals with artificially curly hair (8)
6. Plain sounding stage (4)
7. Venereal affliction from forest so wild (4,4)
8. Otherwise taking tea outside (7)
9. Hero's words spoken to bride to be: "Love at first sight" (4)
10. In Blackburn - Leyland area (7)
11. Lord eating an Asian dairy product (6)
12. Unattached, dine nervously with writer getting depression (11)
13. Jammed network with hair (10)

Down

1. Always on time playing (7)
2. Play/show centres on Asian city (6)
3. Collectively defend Spooner's flower rings (5,5)
4. Archipelago has lent about 500 (8)
5. One female relation becomes goddess (4)
6. Drink produced by brewing lager with rye (4,4)
7. Still love following European (Sven), sort of (4,2)
8. Falmouth losing to Barking (6)
9. Where to steal forty winks? (4)
10. It could transport gold underground (6)
11. Hiding in stairs under landing (10)
12. Bottom and back passage overlapping (7)
13. Debut finally going south in delivering something served by 16 among others (11)