Mother bound by patience breaking free (10)
I believe the answer is:
emancipate
'free' is the definition.
(I've seen this in another clue)
'mother bound by patience breaking' is the wordplay.
'mother' becomes 'ma' (ma can mean mother).
'bound by' is an insertion indicator (inserted letters are held or bound).
'breaking' indicates anagramming the letters.
'patience' anagrammed gives 'encipate'.
'ma' put inside 'encipate' is 'EMANCIPATE'.
(Other definitions for emancipate that I've seen before include "Liberate" , "Free from slavery" , "Set free" , "setting free" , "Free from restrictions" .)