Tool that's not elaborate, we hear (5)
I believe the answer is:
plane
'tool' is the definition.
(plane is a kind of tool)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for plane that I've seen before include "Tool for smoothing wood" , "Aircraft - level surface - carpenter's tool" , "Woodworking tool" , "Nepal (anag.)" , "barked?" .)