Property in Spain changes when roof comes off (7)
I believe the answer is:
effects
'property' is the definition.
(effects is a kind of property)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for effects that I've seen before include "one's luggage" , "Personal property - results" , "goods" , "Impressions produced, or property" , "paraphernalia" .)