Sort of plane needed to carry an elephant? (5)
I believe the answer is:
jumbo
'elephant?' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for jumbo that I've seen before include "Elephant - large aircraft" , "Something very large of its kind - say a jet" , "Really big, like an elephant" , "Immense" , "Owner of trunk" .)