Old African with sore hand I treated (9)
I believe the answer is:
rhodesian
'old african' is the definition.
(I've seen this before)
'sore hand i treated' is the wordplay.
'treated' is an anagram indicator.
'sore'+'hand'+'i'='sorehandi'
'sorehandi' is an anagram of 'RHODESIAN'.
'with' is the link.
(Other definitions for rhodesian that I've seen before include "Large dog (from Zambia or Zimbabwe?)" , "old African" , "Zimbabwean, 1964-79" , "old countryman" , "Citizen of pre-Zimbabwe state - thus he ordains" .)