Make dishevelled when Gough ends in French city in Normandy (7)
I believe the answer is:
roughen
'make dishevelled when gough ends' is the definition.
I can't tell whether this definition defines the answer.
'in french city in normandy' is the wordplay.
'in' indicates putting letters inside.
'french city' becomes 'rouen' (I've seen this in another clue).
'in normandy' becomes 'gh' (I am not sure about this - if you are sure you should believe this answer much more).
'rouen' placed around 'gh' is 'ROUGHEN'.
Can you help me to learn more?
(Other definitions for roughen that I've seen before include "Render coarse" , "chap" , "Make less smooth" , "Gore Hun (anag)" , "Make (surface) uneven" .)