Dish takes part in ancient reenactment (6)
I believe the answer is:
entree
'dish' is the definition.
(I know that entree is a type of dish)
'part in ancient reenactment' is the wordplay.
'part in' indicates the answer is hidden within the clue.
'ENTREE' can be found hidden inside 'ancient reenactment'.
'takes' is the link.
(Other definitions for entree that I've seen before include "Dish providing right of entry" , "Dinner course" , "Starter" , "Dish allowing one to go in?" , "The right ot privilege of admission" .)