### Clue: Jumper available to cover tip of tent's ridge pole (4-4)
### Answer: ROOFTREE 
 ### Explanation: Definition: ridge pole
(kanga)**ROO **("jumper") + **FREE **("available") *to cover* [*tip of*] **T**(ent) 
*A roof-tree is a beam laid along the ridge where sloping sides of a roof meet.