Costly (9)
'costly' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for expensive that I've seen before include "Costing a lot of money" , "High in price" , "not going for a song" , "priceless" , "Charging a lot" .)
'costly' is the definition.
(synonyms)
This is all the clue.
(Other definitions for dear that I've seen before include "close" , "At a high cost" , "Overpriced" , "Expensive; sweet" , "Pricey" .)