Regeneration of canine’s ears after surgery (11)
I believe the answer is:
renaissance
'regeneration' is the definition.
(thesaurus)
'canine's ears after surgery' is the wordplay.
'after surgery' indicates anagramming the letters.
'canines'+'ears'='caninesears'
'caninesears' is an anagram of 'RENAISSANCE'.
'of' acts as a link.
(Other definitions for renaissance that I've seen before include "Classically-influenced revival" , "Time with hint of modernity" , "revival starting in Florence" , "Revival of or renewed interest in something" , "Rebirth" .)