I step over the track (5)
I believe the answer is:
piste
'the track' is the definition.
(thesaurus)
'i step over' is the wordplay.
'over' indicates anagramming the letters.
'i'+'step'='istep'
'istep' anagrammed gives 'PISTE'.
(Other definitions for piste that I've seen before include "Ski track" , "Ski trail" , "Skiing trail" , "Skiing course" , "Ski-slope" .)