Curious chap sure to buy (8)

I believe the answer is:
purchase
'to buy' is the definition.
(synonyms)
'curious chap sure' is the wordplay.
'curious' is an anagram indicator.
'chap'+'sure'='chapsure'
'chapsure' is an anagram of 'PURCHASE'.
(Other definitions for purchase that I've seen before include "Leverage" , "Procure" , "Spend some money" , "become an owner" , "Shop successfully" .)