Psychologist with case for live dance music (6)

I believe the answer is:
jungle
'dance music' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'psychologist with case for live' is the wordplay.
'psychologist' becomes 'Jung' (Carl Jung).
'with' means one lot of letters go next to another.
'case for' suggests removing the centre (the letters which encase the others are used).
'live' with its middle taken out is 'le'.
'jung'+'le'='JUNGLE'
Can you help me to learn more?
(Other definitions for jungle that I've seen before include "Dense tropical forest" , "The __ Book (Kipling work)" , "competitive environment" , "Tropical rainforest area" , "Deep tropical forest" .)
