A legend isn't breaking free (11)
I believe the answer is:
disentangle
'free' is the definition.
(disentangling is a kind of freeing)
'a legend isn't breaking' is the wordplay.
'breaking' is an anagram indicator.
'a'+'legend'+'isnt'='alegendisnt'
'alegendisnt' with letters rearranged gives 'DISENTANGLE'.
(Other definitions for disentangle that I've seen before include "Unravel" , "Straighten" , "Decipher" , "Extricate" , "Clarify" .)