Sue then organised stir (7)
I believe the answer is:
enthuse
'stir' is the definition.
Although both the answer and definition are verbs in their base form, I cannot see how one could define the other.
'sue then organised' is the wordplay.
'organised' indicates an anagram.
'sue'+'then'='suethen'
'suethen' with letters rearranged gives 'ENTHUSE'.
Can you help me to learn more?
(Other definitions for enthuse that I've seen before include "Cheer" , "Show feeling of eager liking and approval" , "Appear keenly interested" , "Show strong approval" , "Seen hut? (anag) - show a lively interest" .)