Health resort in Spain (3)
I believe the answer is:
'health resort' is the definition.
(spa can mean a health resort)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for spa that I've seen before include "Boston" , "Bath, possibly" , "Where people go for spring" , "A therapeutic hot spring" , "Watering-place" .)