Baked tortilla by the seaside (8)
I believe the answer is:
littoral
'the seaside' is the definition.
(thesaurus)
'baked tortilla' is the wordplay.
'baked' is an anagram indicator.
'tortilla' anagrammed gives 'LITTORAL'.
'by' acts as a link.
(Other definitions for littoral that I've seen before include "Relating to a coastal or shore region" , "coastal zone" , "sandy area?" , "Pertaining to the coast" , "Tortilla found in region by the shore" .)