Call for a replay (6)
I believe the answer is:
encore
I believe this is a double definition.
'call for' is the first definition.
(encoring is a kind of calling for)
'a replay' is the second definition.
(thesaurus)
(Other definitions for encore that I've seen before include "We need more" , "Bonus" , "Request for repeat performance" , "Repeated performance demanded by an audience" , "Call to perform again" .)