Tennis star Gibson (6)
I believe the answer is:
althea
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tennis star gibson</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 althea that I've seen before include "female" , "wholesome woman" , "Girl" .)