1: It may be used in candy or brought back in taxi (5)

4: Fiction position (3)

6: You audibly ram partner (3)

7: Cathy's new boat (5)

8: Country encircling one's country (9)

10: Famous pianist's inclination for vocalizing (5)

11: God, transforming first day into last night, was received (3)

12: Pen extracts articles from satay (3)

13: 500 = 100 + 0 - that's entertainment! (5)

2: Fish spawn upstream in little orifices (3)

3: Stabbed, bark 'A Kennedy' (9)

4: Smoked salmon for the auditor with hair (5)

5: Draw out unknown performer before court (7)

6: In my greed I blessed food (7)

9: Gloomy semi-dull firmament (5)

11: Oxygen is pretty amusing. (3)