Area for blokes touring one French city (6)
I believe the answer is:
amiens
'french city' is the definition.
(I've seen this before)
'area for blokes touring one' is the wordplay.
'area' becomes 'a' (maths abbreviation).
'for blokes' becomes 'men's' (eg the men's bathroom).
'touring' means one lot of letters goes inside another (touring can mean going round).
'one' becomes 'I' (Roman numeral).
'mens' going around 'i' is 'miens'.
'a'+'miens'='AMIENS'
(Other definitions for amiens that I've seen before include "French cathedral city on the river Somme" , "City of NE France" , "European town" , "City in northern France" , "French town" .)