Dalliance (10)
I believe the answer is:
flirtation
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dalliance</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for flirtation that I've seen before include "Playful amorous advances" , "Toying with someone's affections" , "Coquetry" , "brief liaison" , "Casual involvement" .)