Cure found in the Algarve (4)
I believe the answer is:
heal
'cure' is the definition.
(I know that cure can be written as heal)
'in the algarve' is the wordplay.
'in' says the answer is hidden in the clue.
'HEAL' can be found hidden inside 'the algarve'.
'found' is the link.
(Other definitions for heal that I've seen before include "Get healthy again" , "remedy" , "Of wound, mend and get better" , "Cure, restore" , "Cure, make well" .)