Little room on top of table for money (4)
I believe the answer is:
loot
'money' is the definition.
(loot is a kind of money)
'little room on top of table' is the wordplay.
'little room' becomes 'loo' (I've seen this before).
'on top of' says to take the initial letters.
The initial letter of 'table' is 't'.
'loo'+'t'='LOOT'
'for' is the link.
(Other definitions for loot that I've seen before include "Tool for plundering" , "Orton play; ill-gotten gains" , "Steal goods as spoils" , "Booty; sack" , "rifle" .)