Polite word of request (6)
I believe the answer is:
please
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">polite word of request</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 please that I've seen before include "Like" , "Gratify, make contented" , "Satisfy while asleep" , "If you'd be so kind?" , "Gratify or ask nicely" .)