"Finian's Rainbow" star (7)
I believe the answer is:
astaire
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">finian's rainbow star</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 astaire that I've seen before include "A satire about Fred, great Hollywood dancer" , "Fred - - (films)" , "US dancer (Top Hat)" , "dance performer" , "Fred --, dancer/actor" .)