Neat trail, oddly enough, in part of South Africa (5)
I believe the answer is:
natal
'part of south africa' is the definition.
(I know that Natal is part of South Africa)
'neat trail oddly enough' is the wordplay.
'oddly enough' means one should take alternating letters.
'neat'+'trail'='neattrail'
The alternating letters of 'neattrail' are 'NATAL'.
'in' is the link.
(Other definitions for natal that I've seen before include "dealing with delivery" , "Colony once" , "of an ass?" , "KwaZulu-____ , South African province" , "South African place" .)