Feudal land (4)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">feudal land</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 fief that I've seen before include "Sphere of control" , "Land held in return for feudal or military service" , "Grant of land" , "Feudal holding" .)