Tent top's ends are pronounced (5)
I believe the answer is:
tepee
'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'.
'te'+'pee'='TEPEE'
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" .)