Wife of Saturn (3)
I believe the answer is:
ops
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wife of saturn</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 ops that I've seen before include "Military (or surgical) procedures" , "Military manoeuvres (abbr)" , "military activity" , "Operations room" , "Operations (abbrev.)" .)