That is not possible (2,3,2)
I believe the answer is:
no can do
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">that is not possible</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for no can do that I've seen before include "Informal expression of refusal" , "That's not possible" , "Absolutely not!" , "Bring-a-bottle party?" , "Unable to help" .)