1: Infection leads from partly uncooked steak (3)

3: Record left by teacher in Siam (5)

6: Some slippers and also shoes (7)

7: Mild expletive for a sea-faring people? (9)

9: Charged a couple of hundred, getting exploited (7)

11: Weird eastern lake (5)

12: Encourage horse led with direction. (3)

1: Nightwear and jersey top added in afterthought (3)

2: Norse gentleman? Not exactly. (5)

3: Woman losing head after another fall (9)

4: Greek characters suggest dawn (3)

5: Language making a comeback in modern Italy (5)

7: Not here? No, no! (5)

8: Publication for children (5)

9: Song is a gas (3)

10: Drongo lacks even a pet (3)