Pleasant Mediterranean resort (4)
I believe the answer is:
nice
I believe this clue is a double definition.
'pleasant' is the first definition.
(similar in meaning)
'mediterranean resort' is the second definition.
(French city on the Mediterranean)
(Other definitions for nice that I've seen before include "French resort; agreeable" , "French city - sounds pleasant" , "Delightful - exact - holiday resort" , "Charming" , "Leading resort on the French Riviera" .)