Rearrange dance to follow religious studies (5)
I believe the answer is:
rejig
'rearrange' is the definition.
(I've seen this before)
'dance to follow religious studies' is the wordplay.
'dance' becomes 'jig' (jig is a kind of dance).
'to follow' says to put letters next to each other.
'religious studies' becomes 're' (abbreviation for Religious Education).
'jig' after 're' is 'REJIG'.
(Other definitions for rejig that I've seen before include "Put into a new order" , "Arrange in new way" , "Re-equip; change round" , "Manipulate" , "Arrange another way" .)