Make deranged Parisian a gin he ordered (7)
I believe the answer is:
unhinge
'make' is the definition.
The definition and answer can be both related to change as well as being verbs in their base form.
Maybe you can see an association between them that I can't see?
'deranged parisian a gin he ordered' is the wordplay.
'deranged parisian' becomes 'un' (I can't explain this - if you can you should give a lot more credence to this answer).
'ordered' is an anagram indicator.
'gin'+'he'='ginhe'
'ginhe' with letters rearranged gives 'hinge'.
'un'+'hinge'='UNHINGE'
Can you help me to learn more?
(Other definitions for unhinge that I've seen before include "Huge inn? (anagram)" , "Throw mind into confusion like loose door" , "Send over the edge mentally" , "Remove a door or derange" , "Make mentally unstable" .)