Study intently (4)
I believe the answer is:
pore
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">study intently</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 pore that I've seen before include "Skin opening; look closely (over)" , "Small skin orifice; study" , "Closely study" , "Look intently" , "Rope around tiny hole" .)