She had a difference with Diana (5)
I believe the answer is:
nadia
'she' is the definition.
'a difference with diana' is the wordplay.
'diana' anagrams to 'NADIA'.
However, I am not clear how this is indicated.
'had' acts as a link.
Can you help me to learn more?
(Other definitions for nadia that I've seen before include "___ Comaneci, Romanian gymnast" , "Russian woman" , "Miss" , "Name of girl" , "Foreign woman" .)