1: Reptile eventually climbing a hill (5)
2: Ball tops over-ripe bananas (3)
3: Came back on a diet anew and wasted away (9)
4: Something useful - like a matching collection? (5)
5: Pate topping primarily honey and tamari? (3)
9: A quaintly pleasing accent (5)
10: The cow may do this in the local veterinary yard (5)
11: Bam! Rotated a degree (3)
12: Uninitiated stoop to finish (3)