Where there's music at the factory (7)
I believe the answer is:
worksop
'where' is the definition.
The definition suggests a singular noun which matches the answer.
'music at the factory' is the wordplay.
'music' becomes 'op' (I am not sure about this - if you are sure you should believe this answer much more).
'at' means one lot of letters go next to another (I've seen this in other clues).
'the factory' becomes 'works' (eg a steel works).
'op' after 'works' is 'WORKSOP'.
'there's' is the link.
Can you help me to learn more?
(Other definitions for worksop that I've seen before include "Where in England" , "found in Nottinghamshire" , "Town in Nottinghamshire" , "northern town" , "town in Midlands" .)