Light blow (3)
I believe the answer is:
pat
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">light blow</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for pat that I've seen before include "Hit lightly" , "well-rehearsed" , "Apt for tender touch" , "Touch gently; glib" , "Touch; name" .)