King taking part in animated war dance (6)
I believe the answer is:
edward
'king' is the definition.
(I know that Edward is a king)
'part in animated war dance' is the wordplay.
'part in' indicates the answer is hidden within the clue.
'EDWARD' is hidden in the letters of 'animated war dance'.
'taking' acts as a link.
(Other definitions for edward that I've seen before include "Fellow" , "Boy" , "The Black Prince's name" , "Name of eight kings" , "Ted" .)