Entering artist quarter (7)
I believe the answer is:
ingress
This might be a double definition.
'entering' is the first definition.
('ingress' can be a synonym of 'entering')
'artist quarter' is the second definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
Can you help me to learn more?
(Other definitions for ingress that I've seen before include "Admission" , "Entrance, access" , "coming in" , "Singers (anag.)" , "The act of entering" .)