Make wooden box with key inserted (6)
I believe the answer is:
create
'make' is the definition.
(creating is a kind of making)
'wooden box with key inserted' is the wordplay.
'wooden box' becomes 'crate' (I've seen this before).
'with key' becomes 'e' (a musical key. I am not sure about the 'with' bit.).
'inserted' indicates putting letters inside.
'crate' going around 'e' is 'CREATE'.
Can you help me to learn more?
(Other definitions for create that I've seen before include "Compose" , "Concoct" , "institute" , "Come up with" , "found" .)