Intermittently (2,3,3)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">intermittently</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for on and off that I've seen before include "spasmodic" , "Switch choices" , "the two sides at Old Trafford?" , "Intermittently" , "Now and then, starting and stopping" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">intermittently</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for off and on that I've seen before include "Intermittently" , "Now and then, here and there (3, 3, 2)" , "the two sides at the Oval are this" , "Now and then, stop and start" , "Intermittent" .)
(Another definition for offandon that I've seen is " Occasionally".)