Substitute some players at Zurich (6)
I believe the answer is:
ersatz
'substitute' is the definition.
(I know that ersatz is a type of substitute)
'some players at zurich' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'ERSATZ' can be found hidden inside 'players at zurich'.
(Other definitions for ersatz that I've seen before include "Substitute - fake" , "Not real or genuine" , "Imitation, not the real thing" , "Cheap substitute or imitation" , "inferior type" .)