Crossword Genius

Chinese currency your aunt regularly used (4)

Ross

I believe the answer is:

yuan

'chinese currency' is the definition.
(currency of China)

'your aunt regularly used' is the wordplay.
'regularly used' means one should take alternating letters (letters selected on a regular basis).
'your'+'aunt'='youraunt'
The alternate letters of 'youraunt' are 'YUAN'.

(Other definitions for yuan that I've seen before include "Chinese money" , "Chinese monetary unit" , "Monetary unit of China" , "Chinese currency unit" , "foreign currency" .)

I've seen this clue in The Times.
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