Holy city with current version of Chinese script (6)

I believe the answer is:

pinyin

'version of chinese script' is the definition.
(script for writing Chinese)

'holy city with current' is the wordplay.
'holy' becomes 'pi' (pi can mean pious).
'city' becomes 'ny' (short for New York).
'with' is a charade indicator (letters next to each other).
'current' becomes 'in' ('in' can mean current or trendy).
'pi'+'ny'+'in'='PINYIN'

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app