Huge amount of money for a swanky residence (4)
I believe the answer is:
pile
'huge amount' is the definition.
(I've seen this in another clue)
'money for a swanky residence' is the wordplay.
'money' becomes 'p'.
'for' means one lot of letters go next to another.
'a swanky residence' becomes 'ile' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'p'+'ile'='PILE'
'of' is the link.
Can you help me to learn more?
(Other definitions for pile that I've seen before include "Post" , "Part of reactor" , "Nap of a carpet" , "Arrange in stacks" , "supporting column" .)