Sold home (well half of it) in London area (4)
I believe the answer is:
soho
'london area' is the definition.
(I've seen this before)
'sold home well half of it in' is the wordplay.
'sold' becomes 's' (this might be a standard abbreviation which I don't know about).
'home' becomes 'HO' (abbreviation for house).
'well' becomes 'so' (both can mean extremely).
'half of it' suggests halving the letters (back).
'in' means one lot of letters goes inside another.
'so' with half the letters taken is 'o'.
's'+'ho'='sho'
'sho' placed around 'o' is 'SOHO'.
Can you help me to learn more?
(Other definitions for soho that I've seen before include "London area renowned for nightlife" , "foreign quarter" , "Central London or Manhattan district" , "Theatre and night-life district of London" , "Colourful neighbourhood in London's West End" .)