Extremely zeitgeisty type of art and dance music (6)
I believe the answer is:
zydeco
'dance music' is the definition.
(I've seen this before)
'extremely zeitgeisty type of art' is the wordplay.
'extremely' suggests removing the centre.
'type of art' becomes 'deco' (I am not sure about this - if you are sure you should believe this answer much more).
'zeitgeisty' with its middle taken out is 'zy'.
'zy'+'deco'='ZYDECO'
'and' is the link.
Can you help me to learn more?
(Other definitions for zydeco that I've seen before include "Cajun music" , "dance music" , "Louisiana music style" , "Music of southern Louisiana" .)