I've almost completed this but I can;t get the 4 in the NW corner, help appreciated.....
1d. A wicket in one African state or another (6) - ?A????
11a. Anglo-Saxon author with the shakes? (5) - ????N
13a. Unconscious by river, reflective storm god produces thought (7) - ????T?S
2d. Say Croydon's fine to go round boozer and start to drink (8) - ?H?????D
PS. Many of the answers have been to do with Greek mythology.