Sierra follower (5)
I believe the answer is:
tango
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sierra follower</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for tango that I've seen before include "something seen in ballroom?" , "Modern ballroom dance" , "Movement from Argentina" , "Dance originating in Argentina" , "reputedly takes two" .)