Fake selection of pedometers at zero (6)
I believe the answer is:
ersatz
'fake' is the definition.
(ersatz means fake or imitation)
'selection of pedometers at zero' is the wordplay.
'selection of' indicates a hidden word.
'ERSATZ' is hidden within 'pedometers at zero'.
(Other definitions for ersatz that I've seen before include "Made in imitation, from German" , "Inferior substitute" , "Made in imitation - in Germany" , "Artificial, imitation - from German" , "Substitute - fake" .)