Possible or likely (2,3,5)
I believe the answer is:
on the cards
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">possible</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">likely</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for on the cards that I've seen before include "Quite possible (colloq.)" , "Likely to happen" , "a fair certainty" , "A merry Christmas is" , "Quite likely" .)