In South Africa, it's so rainy at mid-October (6)
I believe the answer is:
soweto
'in south africa' is the definition.
The definition suggests a singular noun which matches the answer.
'so rainy at mid-october' is the wordplay.
'rainy' becomes 'wet' (similar in meaning).
'at' means one lot of letters go next to another.
'mid' indicates the central letters.
The middle letter of 'october' is 'o'.
'so'+'wet'+'o'='SOWETO'
'it's' is the link.
Can you help me to learn more?
(Other definitions for soweto that I've seen before include "South African township area" , "S. African urban area" , "Largest Black African urban settlement" , "part of South Africa" , "Owes to the South African township" .)