Venetian prince captures Dutch duck (5)
I believe the answer is:
dodge
'duck' is the definition.
('dodge' can be a synonym of 'duck')
'venetian prince captures dutch' is the wordplay.
'venetian prince' becomes 'doge' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'captures' is an insertion indicator.
'dutch' becomes 'd' (common abbreviation).
'doge' enclosing 'd' is 'DODGE'.
Can you help me to learn more?
(Other definitions for dodge that I've seen before include "Avoid or attempt to" , "Avoid with subterfuge" , "Take evasive action" , "Western city" , "Cunning move" .)