Italian magistrate eating last bit of roasted duck (5)
I believe the answer is:
dodge
'duck' is the definition.
(I know that duck is a more specific form of dodge)
'italian magistrate eating last bit of roasted' is the wordplay.
'italian magistrate' becomes 'doge' (I've seen this in another clue).
'eating' indicates putting letters inside.
'last bit of' says to take the final letters.
The last letter of 'roasted' is 'd'.
'doge' going around 'd' is 'DODGE'.
(Other definitions for dodge that I've seen before include "Avoid or evade by bodily movement" , "Move quickly out of the way of" , "Take evasive action" , "bypass" , "Evasion" .)