Italy's largest lake (5)
I believe the answer is:
garda
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">italy's largest lake</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for garda that I've seen before include "Irish state police force" , "Irish police officer" , "Policeman of the Irish Republic" , "One of our police - what a drag" , "An Irish limb of the law" .)