Delightful as a French holiday resort (4)
I believe the answer is:
nice
I believe this clue is a double definition.
'delightful' is the first definition.
(I've seen this in another clue)
'a french holiday resort' is the second definition.
'as' acts as a link.
(Other definitions for nice that I've seen before include "Pleasant - precise" , "good" , "Portuguese river, a centre for port" , "French Mediterranean resort" , "place near Cagnes-sur-Mer" .)