Encode (7)
I believe the answer is:
encrypt
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">encode</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for encrypt that I've seen before include "disguise for security" , "Obscure words of" , "Convert words into code" , "Cipher" , "Obscure significance" .)