Yearning for currency (3)
I believe the answer is:
I believe this is a double definition.
'yearning' is the first definition.
(yen is a kind of yearning)
'currency' is the second definition.
'for' acts as a link.
(Other definitions for yen that I've seen before include "change in East" , "foreign currency" , "Itch, craving" , "Japenese currency" , "Intense desire for a Japanese coin" .)