Transferred foreign currency to the capital of Turkey (4)
I believe the answer is:
sent
'transferred' is the definition.
(sending is a kind of transfering)
'foreign currency to the capital of turkey' is the wordplay.
'foreign currency' becomes 'sen' (I've seen this in another clue).
'to the capital of' indicates taking the first letters.
The initial letter of 'turkey' is 't'.
'sen'+'t'='SENT'
(Other definitions for sent that I've seen before include "Dispatched" , "Noiseless" , "Shipped" , "Thrilled" , "Told to go - enthralled" .)