French town will make Ann strangely upset (6)
I believe the answer is:
nantes
'french town will' is the definition.
The definition suggests a singular noun which matches the answer.
'ann strangely upset' is the wordplay.
'strangely' is an anagram indicator.
'upset' becomes 'tes' ('set' written backwards or 'up').
'ann' with letters rearranged gives 'nan'.
'nan'+'tes'='NANTES'
'make' is the link.
Can you help me to learn more?
(Other definitions for nantes that I've seen before include "port abroad" , "French Atlantic port" , "French FC" , "City in Brittany" , "City on the Loire, associated with 1598 edict ending the French Wars of Religion" .)