Apply pressure (4)
I believe the answer is:
urge
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">apply pressure</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 urge that I've seen before include "Try hard to persuade, advise earnestly" , "Encourage (to do something)" , "Constrain" , "Incite to action" , "Encourage or entreat earnestly" .)