Sahara caravan beast (5)
I believe the answer is:
camel
'sahara caravan beast' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for camel that I've seen before include "Old WWI plane" , "A ship, some say" , "Cud-chewing mammal of desert regions" , "One travelling in caravan" , "Beast of burden in desert regions" .)