Continue working in west London (5)
I believe the answer is:
acton
'west london' is the definition.
The definition suggests a singular noun which matches the answer.
'continue working' is the wordplay.
'continue' becomes 'act' (I can't justify this - if you can you should give a lot more credence to this answer).
'working' becomes 'on' (on can mean working or activated).
'act'+'on'='ACTON'
'in' is the link.
Can you help me to learn more?
(Other definitions for acton that I've seen before include "London area" , "District of West London" , "Gladstone's adviser" , "Part of the London borough of Ealing - British historian, d. 1902" , "English statesman" .)