Want of money (3)
I believe the answer is:
yen
I believe this clue is a double definition.
'want' is the first definition.
(I've seen this in another clue)
'money' is the second definition.
(Japanese currency)
'of' acts as a link.
(Other definitions for yen that I've seen before include "Longing for a currency unit" , "Pine" , "Intense desire for Japanese money" , "Urge" , "Intense longing" .)