On the mend in Bow, or somewhere else in London? (6)
I believe the answer is:
ealing
'somewhere else in london?' is the definition.
The definition suggests a singular noun which matches the answer.
'on the mend in bow' is the wordplay.
I cannot really see how this works, but
'in' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
'or' is the link.
(Other definitions for ealing that I've seen before include "English film studio famous for comedies" , "Genial in London district" , "West London film studio, famous for its comedies" , "sort of comedy" , "Genial (anag) - area of west London" .)