### Clue: From coasts, see child aboard ship (5)
### Answer: SKIDS 
 ### Explanation: Definition: coasts
  KID(child) **contained in**(aboard) SS($$s$$team$$s$$hip). 
Defn: and Answer: To continue to move with little or no effort.  Although, when driving a vehicle, skidding is very different from coasting, the former without and the latter with wheel rotation in the direction of the movement.