Avoid Italian magistrate imprisoning daughter (5)
I believe the answer is:
dodge
'avoid' is the definition.
(dodge can mean to avoid or evade)
'italian magistrate imprisoning daughter' is the wordplay.
'italian magistrate' becomes 'doge' (I've seen this in another clue).
'imprisoning' means one lot of letters goes inside another.
'daughter' becomes 'd' (genealogical abbreviation).
'doge' placed around 'd' is 'DODGE'.
(Other definitions for dodge that I've seen before include "Ploy" , "Avoid by quick movement" , "bypass" , "Sidestep with trick?" , "Evade by moving out of the way" .)