Cry of joy as western bear turned up (5)
I believe the answer is:
whoop
'cry of joy' is the definition.
'whoop' can be an answer for 'cry' (whoop is a kind of cry). I am not sure about the 'of joy' bit.
'western bear turned up' is the wordplay.
'western' becomes 'w'.
'bear' becomes 'pooh' (Winnie the Pooh).
'turned up' shows that the letters should be reversed in order.
'pooh' back-to-front is 'hoop'.
'w'+'hoop'='WHOOP'
'as' acts as a link.
Can you help me to learn more?
(Other definitions for whoop that I've seen before include "Cry of joy or excitement" , "Hooting cry" , "Joyful shout" , "Loud excited cry" , "Hoot" .)