Incredibly damp round township (6)
I believe the answer is:
soweto
'township' is the definition.
(township in Johannesburg in South Africa)
'incredibly damp round' is the wordplay.
'incredibly' becomes 'so' (I can't explain this - if you can you should give a lot more credence to this answer).
'damp' becomes 'wet' (similar in meaning).
'round' becomes 'o' (o is a circular letter).
'so'+'wet'+'o'='SOWETO'
Can you help me to learn more?
(Other definitions for soweto that I've seen before include "Group of townships in South Africa" , "S. African urban area" , "Township in Johannesburg" , "part of South Africa" , "Scene of 1976 riots southwest of Johannesburg" .)