Can live in resort by a Spanish port (8)
I believe the answer is:
'spanish port' is the definition.
(I've seen this before)
'can live in resort by a' is the wordplay.
'in resort' indicates an anagram.
'by' means one lot of letters go next to another.
'canlive' anagrammed gives 'valenci'.
(Other definitions for valencia that I've seen before include "Spanish city and region" , "European area" , "port in the Med" , "Region and major port of eastern Spain" , "Spanish port" .)