The French trapped by fuss in Spanish city (6)
I believe the answer is:
toledo
'spanish city' is the definition.
(I've seen this before)
'the french trapped by fuss' is the wordplay.
'the french' becomes 'le'.
'trapped by' means one lot of letters goes inside another.
'fuss' becomes 'todo' (I've seen this before).
'le' going within 'todo' is 'TOLEDO'.
'in' is the link.
(Other definitions for toledo that I've seen before include "Spanish city famed for swords" , "Maker of 3 [[COLD STEEL]" , "Spanish city on R. Tagus" , "Covering, hiding" , "Spanish city famous for weapons" .)