Very well behaved (7)
I believe the answer is:
angelic
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">very well behaved</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 angelic that I've seen before include "in the manner of Gabriel?" , "Payment for release" , "Nice gal looking heavenly" , "Exceptionally innocent" , "Virtuous" .)