Zulu loses head in war dance (4)
I believe the answer is:
haka
'dance' is the definition.
(I've seen this before)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for haka that I've seen before include "Aggressive Kiwi dance before a rugby match" , "routine before start of match" , "Maori ceremonial war dance" , "Maori ceremonial war-dance" , "pre-match ritual" .)