French port best in a storm? (7)
I believe the answer is:
antibes
'french port' is the definition.
(I've seen this before)
'best in a storm?' is the wordplay.
'storm?' indicates an anagram (I've seen 'storms' mean this).
'best'+'in'+'a'='bestina'
'bestina' with letters rearranged gives 'ANTIBES'.
(Other definitions for antibes that I've seen before include "French Mediterranean resort" , "French community" , "French port" , "French Riviera resort" .)