Generally speaking (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">generally speaking</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 as a rule that I've seen before include "Usually, in the normal course" , "how one might take a calibrated rod" , "Mainly" , "Generally, normally" , "Most of the time" .)