You've got to hand it to some runners (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
(Other definitions for baton that I've seen before include "one watched by players" , "A conductor wields it - or a policemen" , "Stick passed in relay races" , "Policeman's truncheon" , "A stick for a conductor and policeman" .)