A legitimate target (4,4)
I believe the answer is:
fair game
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">a legitimate target</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for fair game that I've seen before include "can be justly criticised" , "hoopla, perhaps?" , "legitimate target for ridicule?" , "Acceptable target?" , "Suitable target" .)