Dance coach from Germany endlessly pirouetted, with Anton's lead (5)
I believe the answer is:
polka
'dance' is the definition.
(polka is a kind of dance)
'pirouetted with anton's lead' is the wordplay.
'pirouetted with' becomes 'polk' (I am not sure about this - if you are sure you should believe this answer much more).
'lead' suggests taking the first letters.
The initial letter of 'anton' is 'a'.
'polk'+'a'='POLKA'
'coach from germany endlessly' acts as a link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for polka that I've seen before include "Take rapid steps" , "Dot may be associated with this" , "Lively dance (but dotty?)" , "Folk dance" , "Bohemian dance with three steps and a hop" .)