### Clue: Demanding cyclist cycles — call to get going (5-2)
### Answer: TALLY-HO 
 ### Explanation: Definition: call to get going 
 TALL(demanding, as in "a tall order") + HOY(Chris, former British champion cyclist, now racing driver) **with its last letter moving to the start of the name**(cycles).
Defn: …, at a hunt.