Entrance made by different singers (7)
I believe the answer is:
ingress
'entrance' is the definition.
(synonyms)
'different singers' is the wordplay.
'different' indicates anagramming the letters.
'singers' is an anagram of 'INGRESS'.
'made by' is the link.
(Other definitions for ingress that I've seen before include "Means of access" , "going in" , "Admission" , "permission to enter" , "Ribbon-like pasta" .)