Clue: Some foreign cash is tiny change (6)
Answer: TIYINS
Explanation: Definition: Some foreign cash
(IS TINY)* – currency units in Kazakhstan, Kyrgyzstan and Uzbekistan. The Izbek version is the least valuable coin in current circulation, so the wordplay is apt. (In fact it has dropped in value since that article was written, and is now about 10,800 to the UK penny)