Nonsense about English director cutting one line in scene of The Singing Nun (8)
I believe the answer is:
brussels
'scene of the singing nun' is the definition.
(where Jeannine Deckers aka The Singing Nun lived)
'nonsense about english director cutting one line' is the wordplay.
'nonsense' becomes 'BS' (bullsh*t).
'about english director cutting' becomes 'russel' (I can't explain this - if you can you should give a lot more credence to this answer).
'one line' is an insertion indicator.
'bs' enclosing 'russel' is 'BRUSSELS'.
'in' is the link.
(Other definitions for brussels that I've seen before include "From which many regulations" , "Capital of Belgium" , "European Commission HQ" , "Release pent-up energy" , "Belgian capital" .)