Strongly recommend (4)
I believe the answer is:
urge
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">strongly recommend</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for urge that I've seen before include "Encourage, press" , "Induce; yearning" , "Compulsion; egg on" , "Advise strongly or prod" , "Impel, exhort" .)