Chilly air
I believe the answer is:
nip
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">chilly air</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 nip that I've seen before include "Feeling cold" , "Pinch; drink of spirits" , "Pinch or squeeze sharply" , "A small whisky" , "Pinch, maybe in the bud" .)