Capital of Oman (4)

'capital of oman' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for rial that I've seen before include "Ready" , "Monetary unit of Iran" , "foreign money" , "Bit of money" , "Unit of money in Iran, like lira" .)
'capital of oman' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for muscat that I've seen before include "Arabic port" , "Sweet aromatic grape" , "Capital of Oman; wine" , "Gulf port -- sweet grape" , "Type of grape and the capital of Oman" .)