Tap or tango (5)
I believe the answer is:
dance
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">tap</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know this)</span><br/ ><br/ >'<span class="explanation-format__original">tango</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ ></span>
(Other definitions for dance that I've seen before include "See 4" , "Flamenco, perhaps" , "Waltz, say" , "Move in time to music" , "Steps" .)