Does it supply wood for building aircraft? (5,4)
I believe the answer is:
plane tree
'does it supply' is the definition.
I can't judge whether this defines the answer.
'wood for building aircraft?' is the wordplay.
'wood' becomes 'plane' (I've seen this before).
'for' means one lot of letters go next to another.
'building aircraft?' becomes 'tree' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'plane'+'tree'='PLANE-TREE'
Can you help me to learn more?
(Other definitions for plane tree that I've seen before include "growth" , "It sheds its bark" , "maple" , "Common city plant" .)