Tent top's ends are pronounced (5)
I believe the answer is:
'tent' is the definition.
(I know that tepee is a type of tent)
'top's ends are pronounced' is the wordplay.
'top' becomes 'tee' (T-shirt).
'ends' says to hollow out the word (remove centre letters).
'are pronounced' becomes 'pee' (I can't explain this - if you can you should give a lot more credence to this answer).
'tee' with its middle taken out is 'te'.
Can you help me to learn more?
(Other definitions for tepee that I've seen before include "Native American dwelling" , "Home of the brave!" , "Wigwam" , "Conical tent" , "Native American tent" .)