Tap lightly (3)
I believe the answer is:
pat
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tap lightly</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 pat that I've seen before include "Affectionate gesture - postman" , "Hit lightly" , "Gentle stroke of the hand with fluent repetition" , "Conveniently; light touch" , "Touch with hand" .)