Where something happened to a pub at Mile End (6)
I believe the answer is:
locale
'where something happened' is the definition.
The answer is a location as well as being a singular noun. This is suggested by the definition.
'pub at mile end' is the wordplay.
'pub' becomes 'local' (one's local pub).
'at' says to put letters next to each other.
'end' says to take the final letters.
The final letter of 'mile' is 'e'.
'local'+'e'='LOCALE'
'to a' acts as a link.
Can you help me to learn more?
(Other definitions for locale that I've seen before include "Place associated with particular events" , "Area connected with event" , "Spot" , "Setting" , "Venue" .)