Performer in political party introduced by the German (6)
I believe the answer is:
dancer
'performer' is the definition.
(dancer is a kind of performer)
'political party introduced by the german' is the wordplay.
'political party' becomes 'anc' (African National Congress, South African party).
'introduced by' means one lot of letters goes inside another (I've seen this in other clues).
'the german' becomes 'der' ('the' in German).
'anc' inserted into 'der' is 'DANCER'.
'in' is the link.
(Other definitions for dancer that I've seen before include "Ballerina cared desperately about Nureyev's lead" , "One in the same team as, say, Rudolf" , "''I hope you have the feet of a ...'' (Charlie McGettigan)" , "Fred Astaire, say" , "Terpsichorean" .)