Cosy (4)
I believe the answer is:
snug
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cosy</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that cosy can be written as snug)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for snug that I've seen before include "Cosy retreat" , "Compact" , "Intimate" , "Cosy room" , "Close fitting but comfortable" .)