Raced, say, over the Alps perhaps
I believe the answer is:
range
'alps perhaps' is the definition.
(alps is a kind of range)
'raced say over' is the wordplay.
'raced' becomes 'ran' ('run' can be a synonym of 'race').
'say' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'over' is a reversal indicator.
'eg' backwards is 'ge'.
'ran'+'ge'='RANGE'
'the' acts as a link.
(Other definitions for range that I've seen before include "Large, grassy land for livestock in the US" , "Area of variation" , "Old song: ''Home on the . . . . .''" , "Cooking appliance" , "Extent - shooting area" .)