Alter dance again? (5)
I believe the answer is:
rejig
I believe this is a double definition.
'alter' is the first definition.
(I've seen this before)
'dance again?' is the second definition.
('jig' is an answer for 'dance' so perhaps 'rejig' is OK for 'dance again')
(Other definitions for rejig that I've seen before include "Put into a new order" , "Arrange in new way" , "Arrange anew" , "Alter" , "Manipulate" .)