Hit London's West End, not forgetting Soho? (8)
I believe the answer is:
clubland
'west end not forgetting soho?' is the definition.
I can't tell whether this definition defines the answer.
'hit london's' is the wordplay.
'hit' becomes 'club' (clubbing is a kind of hitting).
'london's' becomes 'land' (I can't justify this - if you can you should give a lot more credence to this answer).
'club'+'land'='CLUBLAND'
Can you help me to learn more?
(Other definitions for clubland that I've seen before include "Social area of St James's" , "Area with lots of night spots" , "It tends to be busy on Saturday night" .)