Entry for foreign singers (7)
I believe the answer is:
ingress
'entry' is the definition.
(synonyms)
'foreign singers' is the wordplay.
'foreign' is an anagram indicator (foreign order of the letters).
'singers' is an anagram of 'INGRESS'.
'for' acts as a link.
(Other definitions for ingress that I've seen before include "Entrance, access" , "Singers (anag.)" , "Way in" , "Singers provide a means of entry" , "The act of entering" .)