Follows closely (5)
I believe the answer is:
tails
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">follows closely</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for tails that I've seen before include "the back of bears - bulls too" , "Morning coat" , "Evening dress; coin toss call" , "as opposed to heads" , "Gambler's choice" .)