New treats prepared for rabbits (7)
I believe the answer is:
natters
'for rabbits' is the definition.
(both can mean to talk excessively)
'new treats prepared' is the wordplay.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'prepared' indicates anagramming the letters.
'treats' with letters rearranged gives 'atters'.
'n'+'atters'='NATTERS'
(Other definitions for natters that I've seen before include "Talks idly" , "Chatters" .)